參數(shù)資料
型號(hào)： UPD75312
廠商： NEC Corp.
英文描述： 4-BIT SINGLE-CHIP MICROCOMPUTER
中文描述： 4位單片機(jī)
文件頁(yè)數(shù)： 12/62頁(yè)
文件大?。?/td> 577K
代理商： UPD75312
μ
PD75312(A), 75316(A)
12
Also Served
As
(cont'd)
Input/
Output
Circuit
TYPE*
1
Pin Name Input/Output
Function
When Reset
RESET
NC *
5
V
DD
V
SS
Input
—
—
—
—
—
—
—
System reset input
No connection
Positive power supply
GND
—
—
—
—
B
—
—
—
*1: Circles indicate Schmitt trigger inputs.
2: For these display output, V
LCX
indicated below are selected as the input source.
S0 to S31: V
LC1
, COM0 to COM2: V
LC2
, COM3: V
LC0
However, display output level varies depending on the particular display output and V
LCX
external circuit.
3: Internal dividing resistor provided
: Low level
Internal dividing resistor not provided
: High impedance
4: These pins are provided for future system expansion. At present, these pins are used only as
pins P30 and P31.
5: When sharing the printed circuit board with the
μ
PD75P316 and 75P316A, the NC pin must be
connected to V
DD
.
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