7228AIBIZ 查看數據表（PDF） - Renesas Electronics
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产品描述 (功能)
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7228AIBIZ Datasheet PDF : 19 Pages
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ICM7228
Typical Performance Curves
0
-55oC
25oC
100
125oC
200
300
125oC
25oC
400
500
-55oC
5.0
4.0
3.0
2.0
1.0
0
VDD-VDIG (V)
FIGURE 5. COMMON ANODE DIGIT DRIVER IDIG vs (VDD - VDIG)
80
-55oC
25oC
60
40
125oC
20
0
0
1.0
2.0
3.0
4.0
5.0
VSEG (V)
FIGURE 6. COMMON ANODE SEGMENT DRIVER ISEG vs VSEG
0
-55oC
25oC
10
125oC
20
300
-55oC
200
25oC
100
125oC
0
0
1.0
2.0
3.0
4.0
5.0
VDIG (V)
FIGURE 7. COMMON CATHODE DIGIT DRIVER IDIG vs VDIG
30
40
50
5.0
4.0
3.0
2.0
1.0
0
VDD-VSEG (V)
FIGURE 8. COMMON CATHODE SEGMENT DRIVER ISEG vs
(VDD - VSEG)
PIN NO.
NAME
1
SEG c
2
SEG e
3
SEG b
4
DP
5
ID6,
(HEXA/CODE B)
6
ID5, (DECODE)
7
ID7,
(DATA COMING)
8
WRITE
TABLE 1. ICM7228A PIN ASSIGNMENTS AND DESCRIPTIONS
FUNCTION
DESCRIPTION
Output LED Display Segments c, e, b and Decimal Point Drive Lines.
Input
Input
Input
Input
When “MODE” Low: Display Data Input, Bit 7.
When “MODE” High: Control Bit, Decoding Scheme Selection: High, Hexadecimal Decoding;
Low, Code B Decoding.
When “MODE” Low: Display Data Input, Bit 6.
When “MODE” High: Control Bit, Decode/No Decode Selection: High, No Decode; Low, Decode.
When “MODE” Low: Display Data Input, Bit 8, Decimal Point Data.
When “MODE” High: Control Bit, Sequential Data Update Select: High, Data Coming; Low, No
Data Coming.
Data Input Will Be Written to Control Register or Display RAM on Rising Edge of WRITE.
FN3160 Rev 9.00
August 19, 2015
Page 8 of 19
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