CAT1022 CATALYST [Catalyst Semiconductor], CAT1022 Datasheet
CAT1022
Related parts for CAT1022
CAT1022 Summary of contents
Page 1
... V falls below the reset threshold voltage. The CAT1022 CC has only a RESET output and does not have a Write Protect input. The CAT1021 also has a Write Protect input (WP) ...
Page 2
... CAT1021, CAT1022, CAT1023 BLOCK DIAGRAM EXTERNAL LOAD D OUT ACK V CC WORD ADDRESS V SS BUFFERS START/STOP SDA LOGIC XDEC CONTROL WP LOGIC (CAT1021) RESET Controller Precision MR Vcc Monitor WDI RESET (CAT1023) RESET (CAT1021/23) PIN CONFIGURATION DIP Package (P, L) SOIC Package (J, W) TSSOP Package (U, Y) ...
Page 3
... CAT1021, CAT1022, CAT1023 MANUAL RESET INPUT WRITE PROTECT INPUT or left unconnected write SS WATCHDOG TIMER INTERRUPT -40˚C to 85˚C -40˚C to 125˚ ...
Page 4
... CAT1021, CAT1022, CAT1023 ABSOLUTE MAXIMUM RATINGS Temperature Under Bias ................. – +125 C Storage Temperature ....................... – +150 C Voltage on any Pin with (1) Respect to Ground ........... –2 with Respect to Ground ................ –2. Package Power Dissipation Capability ( .................................. 1 Lead Soldering Temperature (10 secs) ............ 300 C ...
Page 5
... CAT1021, CAT1022, CAT1023 Max Units ...
Page 6
... CAT1021, CAT1022, CAT1023 RESET CIRCUIT AC CHARACTERISTICS ...
Page 7
... The CAT1023 is designed with the Watchdog timer feature on the WDI pin. The CAT1021 and CAT1022 monitor the SDA line. If WDI or SDA does not toggle within a 1.6 second interval, the reset condition will be generated on the reset outputs. ...
Page 8
... CAT1021, CAT1022, CAT1023 Figure 1. RESET Output Timing RVALID RESET RESET MR MR Operation and Timing MR Figure RESET RESET Doc. No. 3009, Rev GLITCH t PURST RPD t MRW t MRD t PURST 8 t RPD t PURST ...
Page 9
... The CAT1021/22/23 then perform a Read or Write operation depending on the R/W bit. t HIGH LOW t LOW t HD:DAT t HD:STA t SU:DAT ACK t WR STOP CONDITION 9 CAT1021, CAT1022, CAT1023 t SU:STO t BUF START ADDRESS CONDITION Doc No. 3009, Rev. K ...
Page 10
... CAT1021, CAT1022, CAT1023 ACKNOWLEDGE After a successful data transfer, each receiving device is required to generate an acknowledge. The acknowledging device pulls down the SDA line during the ninth clock cycle, signaling that it received the 8 bits of data. All devices respond with an acknowledge after receiving a START condition and its slave address. If the device ...
Page 11
... CAT1021/22/ single write cycle SLAVE BYTE R ADDRESS ADDRESS BYTE ADDRESS (n) DATA CAT1021, CAT1022, CAT1023 DATA DATA n+1 DATA n+ Doc No. 3009, Rev. K ...
Page 12
... CAT1021, CAT1022, CAT1023 Acknowledge Polling Disabling of the inputs can be used to take advantage of the typical write cycle time. Once the stop condition is issued to indicate the end of the host’s write opration, the CAT1021/22/23 initiates the internal write cycle. ACK polling can be initiated immediately. This involves issuing the start condition followed by the slave address for a write operation ...
Page 13
... SLAVE BYTE R ADDRESS (n) ADDRESS DATA n DATA n CAT1021, CAT1022, CAT1023 S T SLAVE DATA DATA n+2 DATA n Doc No. 3009, Rev ...
Page 14
... CAT1021, CAT1022, CAT1023 PACKAGE OUTLINES 8-LEAD 300 MIL WIDE PLASTIC DIP ( 0.100 (2.54) BSC 0.045 (1.14) 0.060 (1.52) 0.014 (0.36) 0.022 (0.56) Notes: 1. Complies with JEDEC Publication 95 MS001 dimensions; however, some of the dimensions may be more stringent. 2. All linear dimensions are in inches and parenthetically in millimeters. Doc. No. 3009, Rev. K ...
Page 15
... All linear dimensions are in inches and parenthetically in millimeters. 3. Lead coplanarity is 0.004" (0.102mm) maximum. 0.1497 (3.80) 0.1574 (4.00) D 0.0532 (1.35) 0.0688 (1.75) 0.0040 (0.10) 0.013 (0.33) 0.0098 (0.25) 0.020 (0.51) 0.0099 (0.25 0.0196 (0.50) 0.0075 (0.19) 0.0098 (0.25) 0.016 (0.40) 0.050 (1.27) Dimension D Pkg Min 8L 0.1890(4.80) 15 CAT1021, CAT1022, CAT1023 0.2284 (5.80) 0.2440 (6.20) Max 0.1968(5.00) Doc No. 3009, Rev. K ...
Page 16
... CAT1021, CAT1022, CAT1023 8-LEAD TSSOP (U, Y) Doc. No. 3009, Rev ...
Page 17
... This part is compliant with JEDEC Specification MO-187 Variations AA. (6) Lead span/stand off height/coplanarity are considered as special characteristics. (S) (7) Controlling dimensions in inches. [mm] 0.38 0.0150 0.0110 0.28 0.1970 0.1890 0.1220 3.10 2.90 0.1142 0.0059 0.039 [0.10] MAX. S 0.0020 0.0091 0.0051 3.10 0˚ - 6˚ 2.90 17 CAT1021, CAT1022, CAT1023 5.00 S 4.80 0.0374 0.95 0.0295 0.75 0.15 S 0.05 0.0150 0.38 0.0110 0.28 WITH PLATING 0.23 0.13 WITH PLATING 0.0118 [0.30] REF. SECTION Doc No ...
Page 18
... CAT1021, CAT1022, CAT1023 TDFN 3X3 PACKAGE (RD4, ZD4 PIN 1 INDEX AREA NOTE: 1. ALL DIMENSION ARE IN mm. ANGLES IN DEGREES. 2. COPLANARITY SHALL NOT EXCEED 0.08 mm. 3. WARPAGE SHALL NOT EXCEED 0.10 mm. 4. PACKAGE LENGTH / PACKAGE WIDTH ARE CONSIDERED AS SPECIAL CHARACTERISTIC(S) 5. REFER JEDEC MO-229 / WEEC Doc ...
Page 19
... The device used in the above example is a CAT1021JI-30TE13 (Supervisory circuit with serial 2k CMOS EEPROM, SOIC, Industrial Temperature, 3.0-3.15V Reset Threshold Voltage, Tape and Reel). Suffix J I Temperature Range I = Industrial (-40˚C to 85˚ Extended (-40˚C to +125˚C) 19 CAT1021, CAT1022, CAT1023 -30 TE13 Tape & Reel SOIC: 2000/Reel TSSOP: 2000/Reel MSOP: 2500/Reel TDFN: 2000/Reel Reset Threshold Voltage 45: 4 ...
Page 20
REVISION HISTORY Date Rev. Reason 9/25/2003 F Added Green Package logo Updated DC Operating Characteristic notes Updated Reliability Characteristics notes 11/7/2003 G Eliminated Automotive temperature range Updated Ordering Information with “Green” package codes Updated Reset Circuit AC Characteristics 4/12/2004 H ...