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Epson Toyocom Announces Addition to its Lineup of Real-time Clock Modules with S

Published on 29 mayo, 2007

Epson Toyocom Announces Addition to its Lineup of Real-time Clock Modules with Support for High-Speed Serial Interfaces

– TOKYO, Japan, May 29, 2007 –

Epson Toyocom Corporation has added the RA-4565SA with support for high-speed serial interfaces to its lineup of real-time clock modules that can operate in high-temperature environments, in vehicular applications and industrial machinery. Samples will begin shipping in August 2007.

To the RA-8565SA, a product already on the market with I²C-BUS interface, featuring superior characteristics including high temperature (+125°C) warranty and high reliability, the RA-4565SA adds a 4-line serial interface for faster communication. This enables users to select a real-time clock module for high temperature environments that matches their interface specification.

Main specifications

Item	RA-4565SA specifications	Condition
Operating temperature range	-40°C – +125°C
Operating power-supply voltage	1.6 V – 5.5 V
Standby current consumption	0.95 µA (Typ.) / 5V 0.80 µA (Typ.) / 3V	When Ta = +125°C
Standby current consumption	0.60 µA (Typ.) / 5V 0.55 µA (Typ.) / 3V	When Ta = +25°C
External dimensions	10.1 x 7.4 x 3.2 mm (SOP-14 pin)

Main functions

32.768 kHz crystal unit built-in (oscillation characteristics guaranteed): Frequency stability 5 ±23 x 10^-6
Interface type: Four-line serial interface
32.768 kHz output function: Open drain output with output control function
Real-time clock functions: Clock and calendar, automatic leap year correction, alarm interrupt, periodic timer interrupt, etc.

Glossary

Real-Time Clock Modules
A product in which an IC with a real-time clock function and a 32,768 Hz crystal unit are packaged in a single unit. It is used in electronic equipment such as computers and fax machines where time management is required. It offers the benefit of eliminating the need for oscillator circuit and clock precision design, as well as improving the space efficiency of the circuit board.

I²C-BUS
I²C-BUS is a trademark of Philips Electronics N.V.