7228AIBIZ データシートの表示（PDF） - Intersil
部品番号
コンポーネント説明
メーカー
7228AIBIZ Datasheet PDF : 18 Pages
| |||
ICM7228
PIN NO.
NAME
9
MODE
10
ID4,
(SHUTDOWN)
11
ID1
12
ID0
13
ID2
14
ID3
15
DIGIT 1
16
DlGlT 2
17
DIGIT 5
18
DlGlT 8
19
VDD
20
DIGIT 4
21
DlGlT 7
22
DlGlT 6
23
DIGlT 3
24
SEG f
25
SEG d
26
SEG g
27
SEG a
28
VSS
TABLE 1. ICM7228A PIN ASSIGNMENTS AND DESCRIPTIONS (Continued)
FUNCTION
DESCRIPTION
Input
Selects Data to Be Loaded to Control Register or Display RAM: High, Loads Control Register;
Low, Loads Display RAM.
Input
When “MODE” Low: Display Data Input, Bit 5.
When “MODE” High: Control Bit, Low Power Mode Select: High, Normal Operation; Low,
Oscillator and Display Disabled.
Input
When “MODE” Low: Display Data Input, Bit 2.
When “MODE” High and “ID7 (DATA COMING)” Low: Digit Address, Bit 2, Single Digit Update
Mode.
Input
When “MODE” Low: Display Data Input, Bit 1.
When “MODE” High and “ID7 (DATA COMING)” Low: Digit Address, LSB, Single Digit Update
Mode.
Input
When “MODE” Low: Display Data Input, Bit 3.
When “MODE” High and “ID7 (DATA COMING)” Low: Digit Address, MSB, Single Digit Update
Mode.
Input
When “MODE” Low: Display Data Input, Bit 4.
When “MODE” High: RAM Bank Select (Decode Modes Only): High, RAM Bank A; Low, RAM
Bank B
Output LED Display Digits 1, 2, 5 and 8 Drive Lines.
Supply
Output
Device Positive Power Supply Rail.
LED Display Digits 4, 7, 6 and 3 Drive Lines.
Output LED Display Segments f, d, g and a Drive Lines.
Supply Device Ground or Negative Power Supply Rail.
PIN NO.
NAME
1
DIGIT 4
2
DlGlT 6
3
DIGIT 3
4
DlGlT 1
5
ID6,
(HEXA/CODE B)
6
ID5, (DECODE)
7
ID7,
(DATA COMING)
TABLE 2. ICM7228B PIN ASSIGNMENTS AND DESCRIPTIONS
FUNCTION
DESCRIPTION
Output LED Display Digits 4, 6, 3 and 1 Drive Lines.
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.
8
Share Link: 