µ
PD754144, 754244
8
Data Sheet U10040EJ2V1DS
2. BLOCK DIAGRAM
BASIC INTERVAL
TIMER/WATCHDOG
TIMER
8-BIT TIMER
COUNTER#0
8-BIT
TIMER
COUNTER#1
8-BIT
TIMER
COUNTER#2
CASCADED
16-BIT
TIMER
COUNTER
INTERRUPT
CONTROL
PROGRAMMABLE
THRESHOLD
PORT
INTBT
RESET
INTT0
TOUT
INTT1
INTT2
PTO0/P30
PTO1/P31
PTO2/P32
INT0/P61
KRREN
KR4/P70 to
KR7/P73
AV
REF
/P60
PTH00/P62
PTH01/P63
ALU
PROGRAM COUNTER
PROGRAM MEMORY
(ROM)
4096
×
8 BITS
DECODE
AND
CONTROL
CY
SP (8)
SBS
BANK
GENERAL REG.
DATA MEMORY
(RAM)
128
×
4 BITS
EEPROM
16
×
8 BITS
PORT3
4
PORT6
4
PORT7
4
PORT8
BIT SEQ. BUFFER (16)
P30 to P33
P60 to P63
P70 to P73
P80
CLOCK
DIVIDER
SYSTEM CLOCK
GENERATOR
STAND BY
CONTROL
f
X
/2
N
CL1 CL2
X1
X2
φ
CPU CLOCK
Apply to the
µPD754144
Apply to the
µPD754244
IC
V
DD
V
SS
RESET
4
*