參數(shù)資料
型號: UPD75112CW
廠商: NEC Corp.
英文描述: 4-Bit Single Chip-Microcomputer
中文描述: 4位單片微機(jī)
文件頁數(shù): 21/56頁
文件大?。?/td> 499K
代理商: UPD75112CW
21
μ
PD75112(A), 75116(A)
5.7 ProgrammableThreshold Port (Analog Input Port)
The
μ
PD75116(A) is equipped with 4-bit analog input
pins (PTH00 to PTH03) capable of changing the thresh-
old voltage. These pins are configured as shown in
Figure 5-6.
Sixteen threshold voltage (V
REF
) values (V
DD
×
-V
DD
×
) are available and analog signals can be directly
input.
The analog input port can also be used as a digital
signal input port by selecting V
DD
×
for V
REF
.
0.5
15.5
Figure 5-6 Block Diagram of Programmable Threshold Port
+
PTH00
+
PTH01
+
PTH02
+
PTH03
1
4
1
MPX
V
DD
V
REF
R
R
PTHM7
PTH0
PTHM6
PTHM5
PTHM4
PTHM3
PTHM2
PTHM1
PTHM0
PTHM
8
Operation
Stop
Program-
mable
Threshold
Port
Input
Latch (4)
Input Buffer
Inter-
nal
Bus
相關(guān)PDF資料
PDF描述
UPD75112GF 4-Bit Single Chip-Microcomputer
UPD75112GFA 4-Bit Single Chip-Microcomputer
UPD75116 4-Bit Single Chip-Microcomputer
UPD75116A 4-Bit Single Chip-Microcomputer
UPD75116CW 4-Bit Single Chip-Microcomputer
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