UPD78P4916 Datasheet, PDF (15/56 Pages) NEC – 16-BIT SINGLE-CHIP MICROCONTROLLER

µPD78P4916
(2) Non-Port Pins (2/2)
Pin Name
INTP0 - INTP2
INTP3
KEY0 - KEY4
CLO
BUZ
HWIN
RESET
X1
X2
XT1
XT2
AVDD1, AVDD2
AVSS1, AVSS2
AVREF
VDD
VSS
IC
Input/Output
Input
Input
Input
Output
Output
Input
Input
Input
–
Input
–
–
–
–
–
–
–
Alternate function
Description
–
External interrupt request input
REEL0IN
P91 - P95
Key input signal
P60/STRB Clock output
P61/SCK1 Buzzer output
P65
Hardware timer external input
–
Reset input
–
Crystal resonator connection for main system clock oscillation
–
Crystal resonator connection for subsystem clock oscillation
Crystal resonator connection for clock oscillation of watch
–
Positive power supply for analog unit
–
GND for analog unit
–
Reference voltage input to A/D converter
–
Positive power supply to digital unit
–
GND of digital unit
–
Internally connected. Connect directly to VSS.
2.2 PROM Programming Mode (VPP ≥ 5 V, RESET = L)
Pin name
VPP
RESET
A0 - A16
D0 - D7
PGM
CE
OE
VDD
VSS
Input/output
–
Input
I/O
Input
–
Function
Set PROM programming mode
High voltage applied at program write/verify operation
Low level input for setting PROM programming mode
Address input
Data input/output
Program inhibit input in PROM programming mode
PROM enable input / programming pulse input
Read strobe input to PROM
Positive power supply
GND potential
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