upd178p018 Renesas Electronics Corporation., upd178p018 Datasheet - Page 12

• Manufacturer Part Number: upd178p018
• Description: 8-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

12
(2) Non-port pins (2/2)
1.2 Pins in PROM Programming Mode
V
RESET
V
A0 to A16
D0 to D7
CE
OE
PGM
V
GND
Pin Name
Pin Name
PP
PP
DD
Input
Input
Input
I/O
Input
Input
Input
I/O
I/O
—
—
—
High-voltage applied during program write/verification.
Connected directly to GND in normal operating mode.
PROM programming mode setting and high-voltage applied during program write/verification.
Address bus
Data bus
PROM enable input/program pulse input
Read strobe input to PROM
Program/program inhibit input in PROM programming mode.
Positive power supply
Ground potential
PROM programming mode setting
When +5 V or +12.5 V is applied to V
chip is set in the PROM programming mode.
Function
PP
pin and a low-level signal is applied to the RESET pin, this
Function
After Reset Alternate Function
—
PD178P018A
—