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參數(shù)資料
| 型號(hào)： | ICM7211 |
| 廠商： | Intersil Corporation |
| 英文描述： | 4-Digit, ICM7211 (LCD) and ICM7212 (LED) Display Drivers |
| 中文描述： | 4位顯示器解碼器/驅(qū)動(dòng)器 |
| 文件頁數(shù)： | 7/12頁 |
| 文件大?。?/td> | 83K |
| 代理商： | ICM7211 |
9-12
Input Definitions
In this table, V
DD
and V
SS
are considered to be normal operating input logic levels. Actual input low and high levels are
specified under Operating Characteristics. For lowest power consumption, input signals should swing over the full supply.
INPUT
TERMINAL
27
CONDITIONS
V
DD
= Logical One
V
SS
= Logical Zero
V
DD
= Logical One
V
SS
= Logical Zero
V
DD
= Logical One
V
SS
= Logical Zero
V
DD
= Logical One
V
SS
= Logical Zero
Floating or with External
Capacitor to V
DD
V
SS
FUNCTION
B0
Ones (Least Significant)
Data Input Bits
B1
28
Twos
B2
29
Fours
B3
30
Eights (Most Significant)
OSC (LCD Devices
Only)
36
Oscillator Input
Disables BP output devices, allowing segments to be synchronized to
an external signal input at the BP terminal (Pin 5).
ICM7211 Multiplexed-Binary Input Configuration
INPUT
D1
D2
D3
D4
TERMINAL
31
32
33
34
CONDITIONS
FUNCTION
V
DD
= Inactive
V
SS
= Active
D1 Digit Select (Least Significant)
D2 Digit Select
D3 Digit Select
D4 Digit Select (Most Significant)
ICM7211M/ICM7212M Microprocessor Interface Input Configuration
INPUT
DA1
DESCRIPTION
Digit Address
Bit 1 (LSB)
Digit Address
Bit 2 (MSB)
TERMINAL
31
CONDITIONS
V
DD
= Logical One
V
SS
= Logical Zero
V
DD
= Logical One
V
SS
= Logical Zero
FUNCTION
DA1 and DA2 serve as a 2-bit Digit Address Input
DA2, DA1 = 00 selects D4
DA2, DA1 = 01 selects D3
DA2, DA1 = 10 selects D2
DA2, DA1 = 11 selects D1
When both CS1 and CS2 are taken low, the data at the Data
and Digit Select code inputs are written into the input latches.
On the rising edge of either Chip Select, the data is decoded
and written into the output latches.
DA2
32
CS1
Chip Select 1
33
V
DD
= Inactive
V
SS
= Active
V
DD
= Inactive
V
SS
= Active
CS2
Chip Select 2
34
Timing Diagrams
FIGURE 1. MULTIPLEXED INPUT
FIGURE 2. MICROPROCESSOR INTERFACE INPUT
DIGIT SELECT
D
N-1
DIGIT SELECT
D
N
t
DH
t
DS
DATA VALID
D
N
DATA VALID
D
N-1
t
IDS
t
WH
t
IDS
CS1
(CS2)
CS2
(CS1)
DATA AND
DIGIT
ADDRESS
= DON’T CARE
t
DH
t
DS
t
WI
t
ICS
ICM7211, ICM7212
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PDF描述 |
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| ICM7211AMLPL | 4-Digit, LCD Display Driver |
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| ICM7211AMLM44 | 4-Digit, ICM7211 (LCD) and ICM7212 (LED) Display Drivers |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICM7211_05 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Four Digit Display Decoder/Drivers |
| ICM7211A | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Four Digit Display Decoder/Drivers |
| ICM7211A/D DIE | 制造商:Harris Corporation 功能描述: |
| ICM7211A1PLR2207 | 制造商:Harris Corporation 功能描述: |
| ICM7211AI WAF | 制造商:Intersil Corporation 功能描述: |
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