s-24cs64a Seiko Instruments Inc., s-24cs64a Datasheet
s-24cs64a
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s-24cs64a Summary of contents
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... Before using the product in medical equipment or automobile equipment including car audio, keyless entry and engine control unit, contact to SII is indispensable. 2 PROM The S-24CS64A is a 2-wired, low power and wide range operation 64 K-bit E words × 8 bits. Page write and sequential read are available. = 5.5 V) ...
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... GND Figure 1 S-24CS64A0I-J8T1G 8-Pin TSSOP Top view GND Figure 2 S-24CS64A0I-T8T1G 2 2 PROM Pin No. Symbol 1 A0 VCC SCL 4 GND 5 SDA SDA 6 SCL VCC Remark See Dimensions for details of the package drawings. ...
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... Slave address input 2 VCC Power supply Write protection input 3 WP Connected to V Connected to GND: Protection invalid 4 SCL Serial clock input 5 SDA Serial data input / output 6 GND Ground 7 A2 Slave address input 8 A1 Slave address input Seiko Instruments Inc. 2 PROM S-24CS64A Description : Protection valid CC 3 ...
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... CMOS SERIAL E S-24CS64A Block Diagram SCL Start / Stop Detector SDA Device Address Comparator PROM Serial Clock Controller LOAD COMP LOAD INC Address Counter Y Decoder D OUT Figure 4 Seiko Instruments Inc. Rev.4.1 _00 WP VCC GND Voltage Detector High-Voltage Generator ...
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... 0.8×V 0.0 0.3×V CC 0.0 0.2×V CC (Ta = 25° 1.0 MHz, V Min. Typ. Max. — — — — Min. Typ. Max — — cycles / word 2 PROM S-24CS64A Unit Unit Unit *1 5 ...
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... CMOS SERIAL E S-24CS64A DC Electrical Characteristics Item Symbol Conditions Current consumption I CC1 (READ) Current consumption I CC2 (WRITE) Item Symbol Standby current consumption I SB Input leakage current I LI Output leakage current I LO Low level output voltage V OL Current address hold voltage V AH ...
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... R t SU.DAT PROM S-24CS64A Unit Max. 100 kHz µs µs µs 3.5 ns µs µs ns ns µs 1.0 µs 0.3 µs ...
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... CMOS SERIAL E S-24CS64A Write time SCL SDA D0 Write data 8 2 PROM Table 2 Item Symbol Min. t — WR Stop Condition Acknowledge Figure 7 Write Cycle Timing Seiko Instruments Inc. Unit Typ. Max. 6.0 10 Start Condition Rev.4.1 _00 ...
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... WP (Write Protection Input) Pin The write protection is enabled by connecting the WP pin to the V protection, connect the pin to the GND and OR-wired with other open-drain or open-collector output CC Seiko Instruments Inc. 2-WIRE CMOS SERIAL E S-24CS64A respectively When there is no need for write CC 2 PROM 9 ...
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... CMOS SERIAL E S-24CS64A Operation 1. Start Condition Start is identified by a high to low transition of the SDA line while the SCL line is stable at high. Every operation begins from a start condition. 2. Stop Condition Stop is identified by a low to high transition of the SDA line while the SCL line is stable at high. ...
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... When a internal write cycle is in progress, the device does not generate an acknowledge. SCL 2 (E PROM Input) SDA (Master Output) SDA 2 (E PROM Output) Start Condition t t SU.DAT HD.DAT Figure 9 Data Transmission Timing 1 Figure 10 Acknowledge Output Timing Seiko Instruments Inc. 2-WIRE CMOS SERIAL E S-24CS64A 8 9 Acknowledge Output PROM 11 ...
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... CMOS SERIAL E S-24CS64A 5. Device Addressing To start communication, the master device on the system generates a start condition to the bus line. Next, the master device sends 7-bit device address and a 1-bit read / write instruction code on to the SDA bus. The 4 most significant bits of the device address are called the “Device Code”, and are fixed to “1010”. ...
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... Page Write The page write mode allows bytes to be written in a single wire operation in the S-24CS64A. Basic data transmission procedure is the same as that in the “Byte Write”. However, when the E receives 8-bit write data which corresponds to the page size, the page can be written. ...
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... CMOS SERIAL E S-24CS64A 6.3 Write Protection Write protection is available in the S-24CS64A. When the WP pin is connected to the V to memory area is forbidden at all. When the WP pin is connected to the GND, the write protection is invalid, and write operation in all memory area is available. Fix the level of the WP pin from the rising edge of SCL for loading the last write data (D0) until the end of the write time (10 ms max ...
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... Figure 15 Current Address Read 2 PROM is automatically incremented at every Seiko Instruments Inc. 2-WIRE CMOS SERIAL E S-24CS64A 2 PROM is ended. NO ACK from Master Device DATA ADR INC 2 PROM 2 PROM. 15 ...
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... CMOS SERIAL E S-24CS64A 7.2 Random Read Random read is used to read the data at an arbitrary memory address. A dummy write is performed to load the memory address into the address counter. 2 When the E PROM receives a 7-bit device address and a 1-bit read / write instruction code set to “0” ...
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... PROM synchronous to the SCL clock and the address counter DATA (n+1) DATA(n) ADR INC ADR INC Figure 17 Sequential Read Seiko Instruments Inc. 2-WIRE CMOS SERIAL E 2 PROM is ended. NO ACK from Master Device DATA (n+2) DATA (n+x) ADR INC 2 PROM S-24CS64A ADR INC 17 ...
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... R / W=0 Write Inhibition Function at Low Power Voltage The S-24CS64A have a detection circuit for low power voltage. The detection circuit cancels a write instruction when the power voltage is low or the power switch is on. The detection voltage is 1.85 V typically and the release voltage is 1.95 V typically, the hysteresis of approximate 0.1 V thus exists. (See Figure 20 ...
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... Rev.4.1 _00 Using S-24CS64A 1. Adding a pull-up resistor to SDA I/O pin and SCL input pin Add Ω pull-up resistor to the SCL input pin 2 of the I C-bus protocol. Normal communication cannot be provided without a pull-up resistor. *1. When the SCL input pin of the E connect the same pull-up resistor to prevent a high impedance status from being input to the SCL input pin ...
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... CMOS SERIAL E S-24CS64A WP A0, A1 PROM Figure 23 WP Pin Figure 24 A0, A1, A2 Pin Seiko Instruments Inc. Rev.4.1 _00 ...
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... Rev.4.1 _00 3. Matching phases while E The S-24CS64A does not have a pin for resetting (the internal circuit), therefore, the E forcibly reset externally communication interruption occurs in the E software. For example, even if a reset signal is input to the microprocessor, the internal circuit of the E reset as long as the stop condition is not input to the E same status and cannot shift to the next operation ...
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... CMOS SERIAL E S-24CS64A 4. Acknowledge check 2 The I C-bus protocol includes an acknowledge check function as a handshake function to prevent a communication error. This function allows detection of a communication failure during data communication between the microprocessor and E recommended to perform an acknowledge check on the microprocessor side. 5. Built-in power-on-clear circuit ...
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... PROM are satisfied. For the power-on-clear operation 2 PROM immediately after the power-on-clear circuit operates and Seiko Instruments Inc. 2-WIRE CMOS SERIAL E 50 100 150 200 ) Max. RISE [ms] 2 PROM enters the 2 PROM is being accessed. Even if the 2 PROM may malfunction unless the 2 PROM S-24CS64A 2 PROM circuit 23 ...
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... CMOS SERIAL E S-24CS64A 5.2 Wait for the initialization sequence to end 2 The E PROM executes initialization during the time that the supply voltage is increasing to its normal value. All instructions must wait until after initialization. The relationship between the initialization time (t ) and rise time ( shown in Figure 28 ...
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... If a start / stop condition is mistakenly recognized during communication, the recommended that SDA is delayed from the falling edge of SCL by 0.3 µ s minimum in the S-24CS64A. This is to prevent time lag caused by the load of the bus line from generating the stop (or start) condition. ...
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... PROM operation and write data in case that write data is input more than defined page size at “page write” When write data is input more than defined page size at page write operation, for example, S-24CS64A (which can be executed 32-byte page write) is received data more than 33 byte, 8-bit data of the 33rd byte is over written to the first byte in the same page ...
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... In this package, the overcoat of the resin of translucence is carried out on the side of device area. Keep it mind that it may affect the characteristic of a device when exposed a device in the bottom of a high light source. 2-WIRE CMOS SERIAL E Seiko Instruments Inc. 2 PROM S-24CS64A 27 ...
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... CMOS SERIAL E S-24CS64A Characteristics (Typical Data Characteristics 1.1 Current consumption (READ) I Ambient temperature =100 kHz f SCL DATA=0101 300 I CC1 (µA) 200 100 0 – (°C) 1.3 Current consumption (READ) I Ambient temperature Ta =1 =100 kHz f SCL DATA=0101 ...
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... Input leakage current (µA) 85 Seiko Instruments Inc. 2-WIRE CMOS SERIAL E =3 1.5 0 – (°C) Power supply voltage V CC Ta=25°C 1.5 1 Ambient temperature Ta =5 SDA, SCL, WP=0 V 1.0 0 – (°C) 2 PROM S-24CS64A CC2 CC2 29 ...
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... CMOS SERIAL E S-24CS64A 1.13 Input leakage current I Ambient temperature Ta =5 SDA, SCL, WP=5 (µA) 0.5 0 – (°C) 1.15 Output leakage current I Ambient temperature Ta =5 SDA=5 (µA) 0.5 0 – (°C) 1.17 Low level output voltage V Low level output current I Ta=25° ...
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... DET +V DET (V) Seiko Instruments Inc. 2-WIRE CMOS SERIAL E Ambient temperature Ta =5 SDA, SCL 0 85 – (°C) Ambient temperature Ta =5 SDA, SCL 0 85 – (°C) Ambient temperature Ta 2.0 1 – (°C) 2 PROM S-24CS64A IH IL DET 31 ...
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... CMOS SERIAL E S-24CS64A 2. AC Characteristics 2.1 Maximum operating frequency f Power supply voltage V Ta=25° MAX. (Hz) 100k 10k (V) CC Ambient temperature Ta 2.3 Write time (ms – (°C) 2.5 SDA output delay time t Ambient temperature Ta =4 ...
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... Rev.4.1 _00 2.7 SDA output delay time t Ambient temperature (µs) 0 –40 0 Ta(°C) AA Seiko Instruments Inc. 2-WIRE CMOS SERIAL E S-24CS64A 2 PROM 33 ...
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... PROM Package name (abbreviation) and IC packing specifications J8T1: 8-Pin SOP (JEDEC), Tape T8T1: 8-Pin TSSOP, Tape Fixed Product name S-24CS64A: 64 Kbit - H8Tx Package name (abbreviation) and IC packing specifications H8Tx: WLP, Tape Fixed Product name S-24CS64A: 64 Kbit Seiko Instruments Inc. Rev.4.1 _00 ...
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... Use of the information described herein for other purposes and/or reproduction or copying without the express permission of Seiko Instruments Inc. is strictly prohibited. The products described herein cannot be used as part of any device or equipment affecting the human body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus installed in airplanes and other vehicles, without prior written permission of Seiko Instruments Inc ...