HCS500 Datasheet, PDF (4/24 Pages) Microchip Technology – KEELOQ CODE HOPPING ENCODER

HCS500
2.0 PIN ASSIGNMENT
PIN
Decoder
Function
I/O⁽¹⁾
Buffer
Type⁽¹⁾
Description
1
VDD
2
EE_CLK
3
EE_DAT
P
—
Power Connection
O
TTL
Clock to I²C^™ EEPROM
I/O
TTL
Data to I²C EEPROM
4
MCLR
I
ST
Master clear input
5
S_DAT
I/O
TTL Synchronous data from controller
6
S_CLK
I
TTL Synchronous clock from controller
7
RFIN
I
TTL RF input from receiver
8
GND
P
—
Ground connection
Note: P = power, I = in, O = out, and ST = Schmitt Trigger input.
I²C is a trademark of Philips Corporation.
DS40153B-page 4
Preliminary
© 1997 Microchip Technology Inc.