CAT1025WI-30-GT3 ON Semiconductor, CAT1025WI-30-GT3 Datasheet

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CAT1025WI-30-GT3

Manufacturer Part Number
CAT1025WI-30-GT3
Description
IC SUPERVISR CPU 2K EEPROM 8SOIC
Manufacturer
ON Semiconductor
Type
Simple Reset/Power-On Resetr
Datasheet

Specifications of CAT1025WI-30-GT3

Number Of Voltages Monitored
1
Output
Open Drain or Open Collector
Reset
Active High/Active Low
Reset Timeout
130 ms Minimum
Voltage - Threshold
3V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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0
Supervisory Circuits with I
CMOS EEPROM and Manual Reset
FEATURES
© 2009 SCILLC. All rights reserved.
Characteristics subject to change without notice
For Ordering Information details, see page 19.
— 5 V, 3.3 V and 3 V systems
— Five threshold voltage options
— Valid reset guaranteed at V
— WP pin (CAT1025)
Precision Power Supply Voltage Monitor
Active High or Low Reset
400 kHz I
2.7 V to 5.5 V Operation
Low power CMOS technology
16-Byte Page Write Buffer
Built-in inadvertent write protection
1,000,000 Program/Erase cycles
Manual Reset Input
100 year data retention
Industrial and extended temperature ranges
Green packages available with NiPdAu Lead
finished
2
C Bus
CC
= 1 V
1
DESCRIPTION
The CAT1024 and CAT1025 are complete memory
and supervisory solutions for microcontroller-based
systems. A 2k-bit serial EEPROM memory and a
system power supervisor with brown-out protection
are integrated together in low power CMOS techno–
logy. Memory interface is via a 400 kHz I
The CAT1025 provides a precision V
and two open drain outputs: one (RESET) drives high
and the other (RESET
below the reset threshold voltage. The CAT1025 also
has a Write Protect input (WP). Write operations are
disabled if WP is connected to a logic high.
The CAT1024 also provides a precision V
circuit, but has only a RESET
have a Write Protect input.
The power supply monitor and reset circuit protect
memory and system controllers during power up/down
and against brownout conditions. Five reset threshold
voltages support 5 V, 3.3 V and 3 V systems. If power
supply voltages are out of tolerance reset signals
become active, preventing the system microcontroller,
ASIC or peripherals from operating. Reset signals
become inactive typically 200 ms after the supply
voltage exceeds the reset threshold level. With both
active high and low reset signals, interface to
microcontrollers and other ICs is simple. In addition,
the RESET
as an input for push-button manual reset capability.
The CAT1024/25 memory features a 16-byte page. In
addition, hardware data protection is provided by a
V
whenever V
V
Available packages include an 8-pin PDIP and a
surface mount 8-pin SO, 8-pin TSSOP, 8-pin TDFN
and 8-pin MSOP packages. The TDFN package thick-
ness is 0.8 mm maximum. TDFN footprint is 3 x 3 mm.
CC
CC
2
¯¯¯¯¯¯ pin or a separate input, MR
reaches the reset threshold during power up.
C Serial 2k-bit
sense circuit that prevents writes to memory
CC
¯¯¯¯¯¯ ) drives low whenever V
falls below the reset threshold or until
CAT1024, CAT1025
¯¯¯¯¯¯ output and does not
¯¯¯ , can be used
CC
Doc. No. MD-3008 Rev. R
2
C bus.
sense circuit
CC
CC
sense
falls

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CAT1025WI-30-GT3 Summary of contents

Page 1

Supervisory Circuits with I CMOS EEPROM and Manual Reset FEATURES Precision Power Supply Voltage Monitor — 3.3 V and 3 V systems — Five threshold voltage options Active High or Low Reset — Valid reset guaranteed at V ...

Page 2

CAT1024, CAT1025 BLOCK DIAGRAM EXTERNA L LOAD D OUT ACK V CC WORDADDRESS V SS BUFFERS START/STOP SDA LOGIC XDEC CONTR OL LOGIC WP* RESET Controller Precision MR Vcc Monitor RESET* RESET * CAT1025 Only PIN CONFIGURATION DIP Package (L) ...

Page 3

PIN DESCRIPTION : RESET OUTPUTs ¯¯¯¯¯¯ RESET/RESET (RESET CAT1025 Only) ¯¯¯¯¯¯ can be used These are open drain pins and RESET as a manual reset trigger input. By forcing a reset condition on the pin the device will initiate and ...

Page 4

CAT1024, CAT1025 ABSOLUTE MAXIMUM RATINGS Parameters Temperature Under Bias Storage Temperature Voltage on any Pin with Respect to Ground V with Respect to Ground CC Package Power Dissipation Capability (T Lead Soldering Temperature (10 s) (3) Output Short Circuit Current ...

Page 5

CAPACITANCE T = 25º 1.0 MHz Symbol Test (1) C Output Capacitance OUT (1) C Input Capacitance IN AC CHARACTERISTICS 5.5 V and over the recommended temperature ...

Page 6

CAT1024, CAT1025 RESET CIRCUIT AC CHARACTERISTICS Symbol Parameter t Power-Up Reset Timeout PURST RESET Output Delay RDP Glitch Reject Pulse Width GLITCH CC MR Glitch Manual Reset Glitch Immunity t MR Pulse Width MRW ...

Page 7

DEVICE OPERATION Reset Controller Description The CAT1024/25 precision RESET controllers ensure correct system operation during brownout and power up/down conditions. They are configured with open drain RESET outputs. During power-up, the RESET outputs remain active until V reaches the V ...

Page 8

CAT1024, CAT1025 Figure 1. RESET Output Timing RVALID t V PURST CC RESE T RESE T Figure 2: MR ¯¯¯ Operation and Timing MR RESET RESET Doc. No. MD-3008 Rev GLITCH t t RPD PURST ...

Page 9

EMBEDDED EEPROM OPERATION The CAT1024 and CAT1025 feature a 2-kbit embedded serial EEPROM that supports the I transmission protocol. This Inter-Integrated Circuit Bus protocol defines any device that sends data to the bus transmitter and any device ...

Page 10

CAT1024, CAT1025 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 ...

Page 11

Page Write The CAT1024/25 writes bytes of data in a single write cycle, using the Page Write operation. The page write operation is initiated in the same manner as the byte write operation, however terminating after the ...

Page 12

CAT1024, CAT1025 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 CAT1024/25 initiates the internal ...

Page 13

Immediate/Current Address Read The CAT1024 and CAT1025 address counter contains the address of the last byte accessed, incremented by one. In other words, if the last READ or WRITE access was to address N, the READ immediately following would access ...

Page 14

CAT1024, CAT1025 PACKAGE OUTLINE DRAWINGS (1)(2) PDIP 8-Lead 300 mils (L) PIN # 1 IDENTIFICATION D TOP VIEW SIDE VIEW Notes: (1) All dimensions are in millimeters. (2) Complies with JEDEC MS-001. Doc. No. MD-3008 Rev. R ...

Page 15

SOIC 8-Lead 150 mils (W) PIN # 1 IDENTIFICATION TOP VIEW SIDE VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MS-012. © 2009 SCILLC. All rights reserved. Characteristics subject ...

Page 16

CAT1024, CAT1025 (1)(2) TSSOP 8-Lead ( TOP VIEW D SIDE VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MO-153 Doc. No. MD-3008 Rev. R SYMBOL ...

Page 17

MSOP 8-Lead ( TOP VIEW SIDE VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MO-187. © 2009 SCILLC. All rights reserved. Characteristics subject to change ...

Page 18

CAT1024, CAT1025 (1)(2) TDFN 8-Pad (ZD4) D PIN#1 INDEX AREA TOP VIEW SYMBOL MIN NOM A 0.70 0.75 A1 0.00 0.02 A3 0.20 REF b 0.23 0.30 D 2.90 3.00 D2 2.20 2.30 E 2.90 3.00 ...

Page 19

... V – 4.50 V -30: 3.00 V – 3.15 V -28: 2.85 V – 3.00 V (5) -25: 2.55 V – 2.70 V Orderable Part Number – CAT1025xx CAT1025LI-45-G CAT1025LI-42-G CAT1025LI-30-G CAT1025LI-28-G CAT1025LI-25-G CAT1025WI-45-GT3 CAT1025WI-42-GT3 CAT1025WI-30-GT3 CAT1025WI-28-GT3 CAT1025WI-25-GT3 CAT1025YI-45-GT3 CAT1025YI-42-GT3 CAT1025YI-30-GT3 CAT1025YI-28-GT3 CAT1025YI-25-GT3 19 CAT1024, CAT1025 – Tape & Reel T: Tape & ...

Page 20

... Update Example of Ordering Information Update Package Outline Drawings 28-Nov-07 O Update Example of Ordering Information Add “MD-“ to document number 07-Nov-08 P Change logo and fine print to ON Semiconductor 05-Mar-09 Q Update Ordering Information (Remove 2,000/Reel) 14-Jul-09 R Update Ordering Information table ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein ...

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