CAT1321UI-45TE13 datasheet, PDF

Datasheet> All Categories > Power/power management> The power supply circuit> CAT1321UI-45TE13

CAT1321UI-45TE13: DescriptionSupervisory Circuits with I2C Serial 32K CMOS EEPROM; CategoryPower/power management The power supply circuit; File Size484KB，18 Pages; ManufacturerCatalyst; Websitehttp://www.catalyst-semiconductor.com/

Download Datasheet Parametric View All

CAT1321UI-45TE13 Overview

Supervisory Circuits with I2C Serial 32K CMOS EEPROM

CAT1321UI-45TE13 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Parts packaging code	TSSOP
package instruction	TSSOP,
Contacts	8
Reach Compliance Code	unknown
ECCN code	EAR99
Adjustable threshold	NO
Analog Integrated Circuits - Other Types	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code	R-PDSO-G8
JESD-609 code	e0
length	4.4 mm
Humidity sensitivity level	1
Number of channels	1
Number of functions	1
Number of terminals	8
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	TSSOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	240
Certification status	Not Qualified
Maximum seat height	1.2 mm
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	3 V
Nominal supply voltage (Vsup)	5 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	TIN LEAD
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
width	3 mm
Base Number Matches	1

Preview

Download Datasheet

View All

CAT1320, CAT1321

Supervisory Circuits with I

C Serial 32K CMOS EEPROM

FEATURES

Precision power supply voltage monitor

3.0V to 5.5V operation

Low power CMOS technology

64-Byte page write buffer

1,000,000 Program/Erase cycles

100 year data retention

GEN

ALO

— 5V, 3.3V and 3V systems

- +5.0V (+/- 5%, +/- 10%)

- +3.3V (+/- 5%, +/- 10%)

- +3.0V (+/- 10%)

Active low reset, CAT1320

Active high reset, CAT1321

Valid reset guaranteed at V

=1V

400kHz I

C bus

8-pin DIP, SOIC, TSSOP and TDFN packages

Industrial temperature range

DESCRIPTION

The CAT1320 and CAT1321 are complete memory and

supervisory solutions for microcontroller-based systems.

A 32kbit serial EEPROM memory and a system power

supervisor with brown-out protection are integrated

together in low power CMOS technology. Memory

interface is via a 400kHz I

C bus.

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 options,

interface to microcontrollers and other ICs is simple. In

addition, the

RESET

(CAT1320) pin can be used as an

input for push-button manual reset capability.

The CAT1320 provides a precision V

sense circuit

and drives an open drain output,

RESET

low whenever The CAT1320/21 memory features a 64-byte page. In

addition, hardware data protection is provided by a V

falls below the reset threshold voltage.

sense circuit that prevents writes to memory whenever V

The CAT1321 provides a precision VCC sense circuit falls below the reset threshold or until V

reaches the reset

that drives an open drain output, RESET high whenever threshold during power up.

falls below the reset threshold voltage.

Available packages include an 8-pin DIP, SOIC, TSSOP

The power supply monitor and reset circuit protect and 4.9 x 3mm TDFN.

memory and system controllers during power up/down

and against brownout conditions. Five reset threshold

voltages support 5V, 3.3V and 3V systems. If power

supply voltages are out of tolerance reset signals become

PIN CONFIGURATION

PDIP (P, L) SOIC (J, W)

A0 1

A1 2

A2 3

VSS 4

A0 1

A1 2

A2 3

VSS 4

CAT1321

TSSOP (U, Y)

A0 1

A1 2

A2 3

VSS 4

CAT1320

8 VCC

RESET

6 SCL

5 SDA

TDFN PACKAGE: 4.9MM X 3MM

(RD2, ZD2)

VSS

CAT1320

8 VCC

RESET

6 SCL

5 SDA

VCC

RESET

SCL

SDA

CAT1320

8 VCC

7 RESET

6 SCL

5 SDA

A0 1

A1 2

A2 3

VSS 4

CAT1321

8 VCC

7 RESET

6 SCL

5 SDA

VSS

VCC

RESET

SCL

SDA

CAT1321

Characteristics subject to change without notice

Doc. No. 20585, Rev. 00

Recommended Resources

8-channel digital display temperature controller

Glass broken sound and light alarm circuit

Gain Programmable Isolation Amplifier 2

555 fall rescue device circuit

SIPMOS transistor control circuit using photoelectric isolation

How to isolate power modules and non-isolated power supplies respectively: [align=center][img]http://www.hiecube.com/uploadfile/b/ytp8EeDAlfr5k6MDCMd3.jpg[/img][/align] Most of the power supplies we come into contact with in daily life can be roughly divided into power trans...; tgd343310381 Power technology

High Voltage Impedance Tuning Quick Guide: Mobile handset antenna designers face many challenges: ever-increasing frequency band coverage requirements, challenging industry design constraints, and shrinking antenna mounting space. Designers ca...; 兰博 RF/Wirelessly

Will 5G really bring about big changes?: I recently read an article by Qorvo and was shocked by the rapid development of technology, especially the development of 5G. Let me first look at the following pictures. 1. Autonomous vehicles for tr...; alan000345 RF/Wirelessly

Today I suddenly thought of this: If resistors of the same resistance are first connected in series and then in parallel, what is the resistance after N?: Today I suddenly remembered a post I saw in the forum a long time ago, which was explained by teacher [url=home.php?mod=spaceuid=41670]@maychang[/url], but I couldn’t find the original post after sear...; bobde163 Analog electronics

Let’s talk about high technology today… Why is a chip so difficult to make?: Let’s talk about high technology today......; btty038 RF/Wirelessly

I thought foreign manufacturers were indifferent to the RISC-V core...: The topic was actually before the National Day, Brother Kai threw 2 Renesas screenshots from the group (see below) However, he focused on Renesas' expansion of new engineers, just like STM32, and is r...; nmg Domestic Chip Exchange

Shortcut: E0 E1 E2 E3 E4 E5 E6 E7 E8 E9 EA EB EC ED EE EF EG EH EI EJ EK EL EM EN EO EP EQ ER ES ET EU EV EW EX EY EZ F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 FA FB FC FD FE FF FG FH FI FJ FK FL FM FN FO FP FQ FR FS FT FU FV FW FX FY FZ G0 G1 G2 G3 G4 G5 G6 G7 G8 G9 GA GB GC GD GE GF GG GH GI GJ GK GL GM GN GO GP GQ GR GS GT GU GV GW GX GZ H0 H1 H2 H3 H4 H5 H6 H7 H8 HA HB HC HD HE HF HG HH HI HJ HK HL HM HN HO HP HQ HR HS HT HU HV HW HX HY HZ I1 I2 I3 I4 I5 I6 I7 IA IB IC ID IE IF IG IH II IK IL IM IN IO IP IQ IR IS IT IU IV IW IX J0 J1 J2 J6 J7 JA JB JC JD JE JF JG JH JJ JK JL JM JN JP JQ JR JS JT JV JW JX JZ K0 K1 K2 K3 K4 K5 K6 K7 K8 K9 KA KB KC KD KE KF KG KH KI KJ KK KL KM KN KO KP KQ KR KS KT KU KV KW KX KY KZ

Popular Components