ISP1123BD NXP Semiconductors, ISP1123BD Datasheet
ISP1123BD
Related parts for ISP1123BD
ISP1123BD Summary of contents
Page 1
ISP1123 Universal Serial Bus compound hub Rev. 02 — 8 August 2000 1. General description The ISP1123 is a compound Universal Serial Bus (USB) hub device which complies with USB Specification Rev. 1 integrates a Serial Interface Engine ...
Page 2
... Name Description ISP1123D SO32 plastic small outline package; 32 leads; body width 7.5 mm ISP1123NB SDIP32 plastic shrink dual in-line package; 32 leads (400 mil) ISP1123BD LQFP32 plastic low profile quad flat package; 32 leads; body 1 Block diagram ISP1123 ANALOG ANALOG GoodLink/ ...
Page 3
Philips Semiconductors 5. Functional diagram (1) Downstream port 1 is non-removable. Fig 2. A compound hub box using ISP1123. 6. Pinning information 6.1 ISP1123D (SO32) and ISP1123NB (SDIP32) 6.1.1 Pinning V reg(3. PSW2/GL2 GND 3 30 ...
Page 4
Philips Semiconductors 6.1.2 Pin description Table 2: Symbol V reg(3.3) PSW2/GL2 GND DM3 DP3 V CC OC1 OC2 OC3 OC4 OC5/GOC DM4 DP4 SP/BP HUBGL PSW3/GL3 PSW4/GL4 9397 750 07387 Product specification Pin description for SO32 and SDIP32 [1] Pin ...
Page 5
Philips Semiconductors Table 2: Symbol PSW5/GL5/ GPSW XTAL1 XTAL2 RESET OPTION/SCL INDV/SDA DM5 DP5 DM1 DP1 DM0 DP0 DM2 DP2 PSW1/GL1 [1] Symbol names with an overscore (e.g. NAME) indicate active LOW signals. [2] The voltage at pin V connecting ...
Page 6
... Philips Semiconductors 6.2 ISP1123BD (LQFP32) 6.2.1 Pinning Fig 5. Pin configuration LQFP32. 6.2.2 Pin description Table 3: Symbol V reg(3.3) PSW2/GL2 GND DM3 DP3 V CC OC1 OC2 OC3 OC4 9397 750 07387 Product specification DP3 OC1 3 OC2 4 ISP1123BD OC3 5 OC4 6 OC5/GOC 7 DM4 8 Pin description for LQFP32 ...
Page 7
Philips Semiconductors Table 3: Symbol OC5/GOC DM4 DP4 SP/BP HUBGL PSW3/GL3 PSW4/GL4 PSW5/GL5/ GPSW XTAL1 XTAL2 RESET OPTION/SCL INDV/SDA DM5 DP5 DM1 DP1 DM0 DP0 9397 750 07387 Product specification Pin description for LQFP32 …continued [1] Pin Type Description [3] ...
Page 8
Philips Semiconductors Table 3: Symbol DM2 DP2 PSW1/GL1 [1] Symbol names with an overscore (e.g. NAME) indicate active LOW signals. [2] The voltage at pin V connecting RESET to V [3] See [4] To disable a downstream port connect both ...
Page 9
Philips Semiconductors 7.2 Philips Serial Interface Engine (SIE) The Philips SIE implements the full USB protocol layer completely hardwired for speed and needs no firmware intervention. The functions of this block include: synchronization pattern recognition, parallel/serial conversion, bit ...
Page 10
Philips Semiconductors 7.8 Voltage regulator 3.3 V DC-DC regulator is integrated on-chip to supply the analog transceiver and internal logic. This can also be used to supply the terminal 1.5 k pull-up resistor on the D line ...
Page 11
Philips Semiconductors 8. Modes of operation The ISP1123 has several modes of operation, each corresponding with a different pin configuration. Modes are selected by means of pins INDV, OPTION and SP/BP, as shown in Table 4: Mode selection Mode INDV ...
Page 12
Philips Semiconductors The ISP1123 hub supports the following USB descriptor information through its control endpoint 0, which can handle transfers of 64 bytes maximum: • Device descriptor • Configuration descriptor • Interface descriptor • Endpoint descriptor • Hub descriptor • ...
Page 13
Philips Semiconductors Table 7: Standard USB requests Request name bmRequestType byte 0 [7:0] (Bin) Address Set Address X000 0000 Configuration Get Configuration 1000 0000 Set Configuration (0) X000 0000 Set Configuration (1) X000 0000 Descriptor Get Configuration 1000 0000 Descriptor ...
Page 14
Philips Semiconductors 10.2 Hub specific requests In Table 8 unsupported requests. port features. Table 8: Hub specific requests Request name bmRequestType byte 0 [7:0] (Bin) Descriptor Get Hub Descriptor 1010 0000 Feature Clear Hub Feature X010 0000 (C_LOCAL_POWER) Clear Port ...
Page 15
Philips Semiconductors Table 9: Feature selector name PORT_LOW_SPEED C_PORT_CONNECTION C_PORT_ENABLE C_PORT_SUSPEND C_PORT_OVERCURRENT C_PORT_RESET 10.3 Descriptors The ISP1123 hub controller supports the following standard USB descriptors: • Device • Configuration • Interface • Endpoint • Hub • String. Table 10: Device ...
Page 16
Philips Semiconductors Table 10: Device descriptor Values in square brackets are optional. Offset (bytes Table 11: Configuration descriptor Values in square brackets are optional. Offset (bytes [1] Selected by ...
Page 17
Philips Semiconductors Table 13: Endpoint descriptor Offset (bytes Table 14: Hub descriptor Values in square brackets are optional. Offset (bytes [1] ISP1123 always reports power management ...
Page 18
Philips Semiconductors Table 15: String descriptors String descriptors are optional and therefore disabled by default; they can be enabled through an external EEPROM. Offset (bytes) String descriptor (1): manufacturer string String descriptor (2): product string 0 1 ...
Page 19
Philips Semiconductors 10.4.4 Get hub status The hub returns 4 bytes, see Table 19: Get hub status response Bit # 10.4.5 Get port status The hub returns 4 bytes. The ...
Page 20
Philips Semiconductors Table 21: Get port status response (wPortChange) Bit # 10.4.6 Get configuration descriptor The hub returns 25 bytes containing the configuration descriptor (9 bytes, see Table (7 bytes, see 10.4.7 ...
Page 21
Philips Semiconductors 2 11. I C-bus interface A simple I product ID and some other configuration bits from an external EEPROM. The interface supports single master operation at a nominal bus speed of 93.75 kHz. 2 The I serial bus ...
Page 22
Philips Semiconductors Fig 6. EEPROM connection diagram. The slave address which ISP1123 uses to access the EEPROM is 1010000B. Page mode addressing is not supported, so pins A0, A1 and A2 of the EEPROM must be connected to GND (logic ...
Page 23
Philips Semiconductors Table 23: Configuration bits Bit C7, C6 [1] Default value at reset if no external EEPROM is present. [2] Modifies the Hub Descriptor field ‘bPwrOn2PwrGood’, see [3] Modifies the Hub Descriptor field ...
Page 24
Philips Semiconductors 12. Hub power modes USB hubs can either be self-powered or bus-powered. Self-powered — Self-powered hubs have local power supply on board which provide power to the hub and the downstream ports. The USB Specification ...
Page 25
Philips Semiconductors In case of global overcurrent detection an increased voltage drop is needed for the overcurrent sense device (in this case a low-ohmic resistor). This can be realized by using a special power supply of 5.1 V voltage drop ...
Page 26
Philips Semiconductors 13. Overcurrent detection The ISP1123 has an analog overcurrent detection circuit for monitoring downstream port lines. This circuit automatically reports an overcurrent condition to the host and turns off the power to the faulty port. The host must ...
Page 27
Philips Semiconductors ref SP/BP ISP1123 ref(nom 0.5 A OC(nom) a. Self-powered mode. Fig 10. Tuning the overcurrent trip voltage. 13.4 Reference circuits Some typical examples of port ...
Page 28
Philips Semiconductors 5 V POWER SUPPLY 3% 4.85 V(min PSW1/GL1 GND PSW2/GL2 PSW3/GL3 100 PSW4/GL4 PSW5/GL5/GPSW INDV SP/BP OPTION ISP1123 OC5/GOC Power switches are low-ohmic PMOS devices as specified in Fig 11. ...
Page 29
Philips Semiconductors 5.1 V KICK-UP POWER SUPPLY 4.95 V(min GND 100 PSW5/GL5/GPSW INDV SP/BP OPTION ISP1123 Power switch is low-ohmic PMOS device as specified in Fig 12. Mode 1: self-powered hub; ganged port power switching; ...
Page 30
Philips Semiconductors upstream port 4.50 V(min) V BUS D D GND SHIELD PSW1/GL1 V CC PSW2/GL2 GND PSW3/GL3 PSW4/GL4 PSW5/GL5/GPSW INDV SP/BP OPTION ISP1123 OC1 OC2 OC3 OC4 OC5/GOC Power switches are low-ohmic PMOS devices as specified ...
Page 31
Philips Semiconductors upstream port V BUS D D GND SHIELD V CC GND PSW5/GL5/GPSW INDV SP/BP OPTION ISP1123 Power switch is low-ohmic PMOS device as specified in Fig 14. Mode 0: bus-powered hub; ganged port power switching; global overcurrent detection. ...
Page 32
Philips Semiconductors 14. Limiting values Table 24: Absolute maximum ratings In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol Parameter V supply voltage CC V input voltage I I latchup current latchup V electrostatic discharge voltage esd T ...
Page 33
Philips Semiconductors 15. Static characteristics Table 26: Static characteristics; supply pins V = 4 GND amb Symbol Parameter V regulated supply voltage reg(3.3) I operating supply current suspend ...
Page 34
Philips Semiconductors Table 29: Static characteristics: analog I/O pins ( 4 GND amb Symbol Parameter Input levels V differential input sensitivity DI V differential common mode ...
Page 35
Philips Semiconductors Table 31: Dynamic characteristics: overcurrent sense pins V = 4 GND amb Symbol Parameter t overcurrent trip response time trip from OCn LOW to PSWn HIGH [1] Operating modes ...
Page 36
Philips Semiconductors Table 33: Dynamic characteristics: analog I/O pins ( low-speed mode V = 4 GND amb Symbol Parameter Driver characteristics t rise time LR t fall time ...
Page 37
Philips Semiconductors T PERIOD 3.3 V crossover point differential data lines the bit duration corresponding with the USB data rate. PERIOD Fig 16. Source differential data jitter. T PERIOD 3.3 V crossover point differential data lines ...
Page 38
Philips Semiconductors Fig 19. Receiver SE0 width tolerance. 3.3 V crossover upstream point differential data lines 0 V hub delay downstream t HDD 3.3 V downstream differential data lines 0 V (A) downstream hub delay SOP distortion: t SOP = ...
Page 39
Philips Semiconductors 3.3 V upstream differential data lines EOP 3.3 V downstream differential data lines 0 V (A) downstream EOP delay EOP delay: t EOP = max (t EOP , t EOP ) EOP delay relative to ...
Page 40
Philips Semiconductors SDA t BUF t LOW SCL HD;STA 2 Fig 22. I C-bus timing. 17. Test information The dynamic characteristics of the analog I/O ports (D and D and Table Fig 23. Load impedance for D+ ...
Page 41
Philips Semiconductors 18. Package outline SO32: plastic small outline package; 32 leads; body width 7 pin 1 index 1 e DIMENSIONS (inch dimensions are derived from the original mm dimensions) A UNIT max. ...
Page 42
Philips Semiconductors SDIP32: plastic shrink dual in-line package; 32 leads (400 mil pin 1 index 1 DIMENSIONS (mm are the original dimensions UNIT max. min. max. mm 4.7 0.51 3.8 Note 1. ...
Page 43
Philips Semiconductors LQFP32: plastic low profile quad flat package; 32 leads; body 1 pin 1 index DIMENSIONS (mm are the original dimensions) A UNIT ...
Page 44
Philips Semiconductors 19. Soldering 19.1 Introduction to soldering surface mount packages This text gives a very brief insight to a complex technology. A more in-depth account of soldering ICs can be found in our Data Handbook IC26; Integrated Circuit Packages ...
Page 45
Philips Semiconductors During placement and before soldering, the package must be fixed with a droplet of adhesive. The adhesive can be applied by screen printing, pin transfer or syringe dispensing. The package can be soldered after the adhesive is cured. ...
Page 46
... Supersedes Preliminary specification ISP1123-01 (9397 750 06325). Revised from legacy ISP1123-01.db2; converted to DBII v2.2; Datasheet Starter template 1.3_a9 applied. Changes: 1. Restriction on availability of ISP1123BD removed in 2. Definition of bits C7 and C6 (MaxPower) corrected in 3. Resistor value changed in soft turn-on circuit (10 k -> 19991005 Preliminary specifi ...
Page 47
Philips Semiconductors 21. Data sheet status Datasheet status Product status Definition Objective specification Development This data sheet contains the design target or goal specifications for product development. Specification may change in any manner without notice. Preliminary specification Qualification This data ...
Page 48
Philips Semiconductors Philips Semiconductors - a worldwide company Argentina: see South America Australia: Tel. +61 2 9704 8141, Fax. +61 2 9704 8139 Austria: Tel. +43 160 101, Fax. +43 160 101 1210 Belarus: Tel. +375 17 220 0733, Fax. ...
Page 49
... Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 4 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 2 5 Functional diagram . . . . . . . . . . . . . . . . . . . . . . 3 6 Pinning information . . . . . . . . . . . . . . . . . . . . . . 3 6.1 ISP1123D (SO32) and ISP1123NB (SDIP32 6.1.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 6.1.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4 6.2 ISP1123BD (LQFP32 6.2.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 6.2.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 6 7 Functional description . . . . . . . . . . . . . . . . . . . 8 7.1 Analog transceivers . . . . . . . . . . . . . . . . . . . . . 8 7.2 Philips Serial Interface Engine (SIE 7.3 Hub repeater 7.4 End-of-frame timers . . . . . . . . . . . . . . . . . . . . . 9 7.5 General and individual port controller ...