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參數(shù)資料
| 型號： | μPD78P058 |
| 廠商： | NEC Corp. |
| 英文描述： | 8 Bit Single Chip Microcontrollers(8位單片微控制器) |
| 中文描述： | 8位單片機微控制器（8位單片微控制器） |
| 文件頁數(shù)： | 15/86頁 |
| 文件大?。?/td> | 502K |
| 代理商： | ΜPD78P058 |
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15
μ
PD78P054, 78P058
(2) Non-port pins (2/2)
Pin Name
Input/Output
Function
After Reset
Alternate
Function
WAIT
Input
Wait insertion when accessing external memory
Input
P66
ASTB
Output
Strobe output to externally latches address information which is
output to ports 4 and 5 for accessing external memory
Input
P67
ANI0 to ANI7
Input
Analog input of A/D converter
Input
P10 to P17
ANO0, ANO1
Output
Analog output of D/A converter
Input
P130, P131
AV
REF0
Input
Reference voltage input of A/D converter
—
—
AV
REF1
Input
Reference voltage input of D/A converter
—
—
AV
DD
—
Analog power supply of A/D converter. Connect to V
DD
.
—
—
AV
SS
—
Ground potential of A/D converter and D/A converter. Connect to V
SS
.
—
—
RESET
Input
System reset input
—
—
X1
Input
Main system clock oscillation crystal connection
—
—
X2
—
—
—
XT1
Input
Subsystem clock oscillation crystal connection
Input
P07
XT2
—
—
—
V
DD
—
Positive power supply
—
—
V
PP
—
High-voltage applied during program write/verify.
Connect directly to V
SS
in normal operating mode.
—
—
V
SS
—
Ground potential
—
—
2.2
Pins in PROM Programming Mode
Pin Name
Input/Output
Function
RESET
Input
PROM programming mode setting
When +5 V or +12.5 V is applied to the V
PP
pin and a low-level signal is applied to the RESET
pin, this chip is set in the PROM programming mode.
V
PP
Input
PROM programming mode setting and high-voltage applied during program write/verification
A0 to A16
Input
Address bus
D0 to D7
Input/output
Data bus
CE
Input
PROM enable input/program pulse input
OE
Input
Read strobe input to PROM
PGM
Input
Program/program inhibit input in PROM programming mode
V
DD
—
Positive power supply
V
SS
—
Ground potential
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