83C754 Datasheet, PDF (3/26 Pages) NXP Semiconductors – 80C51 8-bit microcontroller family 4K/256 OTP/ROM, DAC, comparator, UART, reference

Philips Semiconductors
80C51 8-bit microcontroller family
4K/256 OTP/ROM, DAC, comparator, UART, reference
Preliminary specification
83C754/87C754
BLOCK DIAGRAM
V_CC
V_SS
RAM ADDR
REGISTER
RAM
ROM/
EPROM
B
REGISTER
ACC
STACK
POINTER
AV_SS
AV_CC
X_IN
XYZRAMP
DECOUPLE
VREG
XYDACBIAS
XYSOURCE
ZDAC
XYDAC
DAC
ANALOG
TMP2
TMP1
ALU
PSW
PCON
TCON
IE
TH0 TL0
TH1 TL1
INTERRUPT, SERIAL
PORT AND TIMER BLOCKS
RST
TIMING
AND
CONTROL
PD
OSCILLATOR
X1
X2
PORT 1
LATCH
PORT 1
DRIVERS
P1.0–P1.2
PORT 3
LATCH
PORT 3
DRIVERS
P3.0–P3.7
PROGRAM
ADDRESS
REGISTER
BUFFER
PC
INCRE-
MENTER
PROGRAM
COUNTER
DPTR
SU00666D
1998 Apr 23
3