2 / 16 page

2
SMS2916
2028-02 4/24/98
Preliminary
PIN CONFIGURATIONS
FIGURE 1. TYPICAL APPLICATION USING DUAL RESET FUNCTION AND WATCHDOG TIMER
PIN NAMES
Symbol
Pin
Description
WDI
1
Watchdog Input /a high to
low transition will clear the
watchdog timer
RESET
2
Active Low RESET Input/Output
NC
3
No Connect, tie to ground
or leave open
GND
4
Analog and Digital Ground
SDA
5
Serial Memory Input/
Output data line
SCL
6
Serial Memory clock input
RESET
7
Active High RESET Input/
Output
VCC
8
Supply Voltage
2028 PGM T1.1
RST
SCL (P0.0)
SDA (P0.1
Vcc
RESET
SCL
SDA
WDI
RESET
NC
GND
SCL
SDA
RESET
VCC = 3.0 0r 5.0
8051 Type MCU
SMS2916
I C
Peripheral
2
PB_RST
ALE
2028 ILL3.1
WDI
RESET
NC
GND
8
7
6
5
VCC
RESET
SCL
SDA
1
2
3
4
2028 ILL1.2