W83C43 Datasheet, PDF (5/21 Pages) Winbond – KEYBOARD CONTROLLER

BLOCK DIAGRAM
T0
T1
x1
x2
WR
RD
CS
A2
RESET
RECEIVE
CONTROL
HARDWIRE
CONTROL &
SELECT
LOGIC
SCAN
CODE
ROM
TRANSMIT
CONTRROL
TRANSMIT
REGISTER
STATUS
REGISTER
W83C43
D0~D7
DATA
BUFFER
REGISTER
R64
STATUS
BUFFER
REGISTER
W60
W64
INPUT
BUFFER
REGISTER
R60
OUTPUT
BUFFER
REGISTER
INPUT &
OUTPUT
PORT
INTERFACE
OUTPUT
PORT
INTERFACE
P10
P11
P12
P13
P14 (RAM)
P15 (JUMP)
P16 (DISP)
P17 (KINH)
P20 (RC)
P21 (GA20)
P22 (NC/MDAT)
P23 (NC/MCLK)
P24 (KINT)
P25 (IEMP/MINT)
P26 (KCLK)
P27 (KDAT)
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Ambient Operating Temperature
Storage Temperature
Supply Voltage to Ground Potential
Applied Input/Output Voltage
Power Dissipation
RATING
-0 to + 85
-65 to + 150
-0.3 to + 7.0
-0.3 to + 7.0
50
UNIT
°C
°C
V
V
mW
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the
device.
Publication Release Date: January 1996
-5-
Revision A2