RTC-62423 - Epson Company

RTC-62423 4-bit REAL TIME CLOCK MODULE

Bit name Writable. Recognized as 0 while in read mode. ∗ mark Read only (effective only when HOLD=1) BUSY Enter “0” only when clearing interruption. Enter “1” otherwise. IRQ FLAG Set able only when RESET=1 24H/12H For our company's testing. TEST should be “0” in normal use. TEST Note: Do not enter erroneous data for clock. This may result in time keeping err.

Features

2 3 4 5 6 7 8 9 RTC-62423 24 23 22 21 20 19 18 17 16 15 14 13 Operating range Item Operating voltage Operating temperature Data holding voltage CS1 data holding time Operation restoring time Symbol VDD TOPR VDH tCDR tR Refer to the data holding timing Condition Specifications 4.5 to 5.5 -40 to +85 2.0 to 5.5 2.0 min. Unit V ˚C V µs No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 62421 STD. P CS 0 ALE A0 A1 A2 A3 RD GND WR D3 D2 D1 D0 CS1 (VDD) (VDD) VDD 1 2 3 4 5 6 7 8 9 10 11 12 (VDD) and VDD are to have the same level of voltage. Do not connect it to any external terminals. NC .