UPD789304 Datasheet, PDF (9/64 Pages) NEC – 8-BIT SINGLE-CHIP MICROCONTROLLER

µPD789304, 789306, 789314, 789316
2. BLOCK DIAGRAM
TO30/TMI40/P31
TO40/P32
TMI40/TO30/P31
8-bit
timer 30
Cascaded
16-bit
timer/event
8-bit
counter
timer/event
counter 40
TO20/P26
CPT20/P30
16-bit timer 20
Watch timer
78K/0S
CPU core
ROM
Port 0
Port 1
Port 2
Port 3
P00 to P03
P10 to P13
P20 to P26
P30 to P33
Watchdog timer
Port 5
SCK10/P20
SO10/P21
SI10/P22
Serial
interface 10
RAM
RAM space
for
LCD data
System control
SCK20/ASCK20/P23
SO20/TxD20/P24
SI20/RxD20/P25
Serial
interface 20
S0 to S23
COM0 to COM3
VLC0 to VLC2
CAPH
CAPL
LCD
controller driver
VDD VSS IC
Interrupt control
Remark Pin names enclosed in parentheses are when using the µPD789314, 789316.
P50 to P53
RESET
X1 (CL1)
X2 (CL2)
XT1
XT2
INTP0/P30
INTP1/P31
INTP2/P32
INTP3/P33
KR0/P00 to
KR3/P03
Data Sheet U14384EJ1V0DS
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