參數(shù)資料
型號(hào): UPD75212ACW
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): 26/70頁(yè)
文件大?。?/td> 516K
代理商: UPD75212ACW
26
μ
PD75212A
4
4
4
10
12
4
4
4
4
4
4
2
10
2
2
4
2
10
10
INTKS
IRQKS
Generation
Signal
V
LOAD
T0-T9
T13/S12/PH0-
T10/S15/PH3
T15/S10,
T14/S11
S0-S9
Internal Bus
Selector
Selector
Segment Data Latch (16)
Display Data Memory
(64
×
4 Bits)
Key Scan Registers (KS0, KS1)
Port H
Digit Signal
Generator
Key Scan
Flag (KSF)
Display
Mode
Register
Digit
Select
Register
Dimmer
Select
Register
High-Voltage Output Buffer
V
PRE
Fig. 5-8 FIP Controller/Driver Block Diagram
Note
The FIP controller/driver can only operate in the high and intermediate-speeds (PCC = 0011B or
0010B) of the main system clock (SCC.0 = 0). It may cause errors with any other clock or in the
standby mode. Thus, be sure to stop FIP controller operation (DSPM.3 = 0) and then shift the unit
to any other clock mode or the standby mode.
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