cat1162 Catalyst Semiconductor, cat1162 Datasheet
cat1162
Available stocks
Related parts for cat1162
cat1162 Summary of contents
Page 1
... The CAT1161 watchdog monitors the SDA line, making an additional PC board trace unnecessary. The lower cost CAT1162 does not have a watchdog timer. The power supply monitor and reset circuit protects memory and system controllers during power up/down and against brownout conditions ...
Page 2
... CAT1161, CAT1162 BLOCK DIAGRAM EXTERNA L LOAD D OUT ACK V CC WORDADDRESS GND BUFFERS START/STOP SDA LOGIC XDEC CONTR OL WP LOGIC RESET Controller Precision WATCHDOG Only for Vcc Monitor CAT1161 RESET RESET ABSOLUTE MAXIMUM RATINGS Parameters Temperature Under Bias Storage Temperature Voltage on any Pin with Respect to Ground ...
Page 3
... Test Conditions f = 100 KHz SCL GND GND mA 3. Test is stable until the specific operation can be initiated CAT1161, CAT1162 Min Typ Max Units 0.4 Conditions Max I ...
Page 4
... CAT1161, CAT1162 WRITE CYCLE LIMITS Symbol Parameter t Write Cycle Time WR The write cycle time is the time from a valid stop condition of a write sequence to the end of the internal program/erase cycle. During the write cycle, the bus interface circuits are disabled, SDA is allowed to remain high, and the device does not respond to its slave address ...
Page 5
... Watchdog Timer times out. This will generate a reset condition on reset outputs. The Watchdog Timer is cleared by any transition on SDA. As long as the reset signal is asserted, the Watchdog Timer will not count and will stay cleared. The CAT1162 does not have a Watchdog. t GLITCH t t ...
Page 6
... CAT1161, CAT1162 Hardware Data Protection The CAT1161/2 is designed with the following hardware data protection features to provide a high degree of data integrity. (1) The CAT1161/2 features a WP pin. When the WP pin is tied high the entire memory array becomes write protected (read only). (2) The V sense provides write protection when V ...
Page 7
... SDA line) when its address matches the transmitted slave address. The CAT1161/2 then performs a Read or Write operation depending on the R/W ¯ ¯ bit. 1 START a10 a9 7 CAT1161, CAT1162 8 9 ACKNOWLEDGE R/W ¯ ¯ a8 Doc. No. MD-3002 Rev. G ...
Page 8
... CAT1161, CAT1162 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. The CAT1161/2 responds with an acknowledge after receiving a START condition and its slave address. ...
Page 9
... The master device does not send an acknowledge, but will generate a STOP condition SLAVE R ADDRESS DATA 8TH BI T DATA OUT NO ACK 9 CAT1161, CAT1162 STOP Doc. No. MD-3002 Rev. G ...
Page 10
... CAT1161, CAT1162 Selective/Random Read Selective/Random READ operations allow the Master device to select at random any memory location for a READ operation. The Master device first performs a ‘dummy’ write operation by sending the START condition, slave address and byte addresses of the location it wishes to read. After the ...
Page 11
... For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf. Notes: (1) All dimensions are in millimeters. (2) Complies with JEDEC MS-001. © Catalyst Semiconductor, Inc. Characteristics subject to change without notice SYMBOL CAT1161, CAT1162 MIN NOM MAX 5.33 0.38 2.92 3.30 4.95 0.36 0.46 0.56 1.14 1.52 1.78 0.20 0.25 0.36 9.02 9.27 10.16 7.62 7.87 8.25 2.54 BSC 6.10 6 ...
Page 12
... CAT1161, CAT1162 (1)(2) SOIC 8-Lead 150mils (W) PIN # 1 IDENTIFICATION TOP VIEW SIDE VIEW For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf. Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MS-012. Doc. No. MD-3002 Rev. G SYMBOL A A1 ...
Page 13
... All packages are RoHS-compliant (Lead-free, Halogen-free). (2) The standard lead finish is NiPdAu. (3) The device used in the above example is a CAT1162WI-30-GT3 (SOIC, Industrial Temperature 3.15V, NiPdAu, Tape & Reel, 3,000/Reel). (4) For additional package and temperature options, please contact your nearest Catalyst Semiconductor Sales office. ...
Page 14
... Catalyst Semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Catalyst Semiconductor product could create a situation where personal injury or death may occur. ...