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參數資料
| 型號： | TC7211AM |
| 廠商： | TelCom Semiconductor, Inc. |
| 英文描述： | BUS COMPATIBLE 4-DIGIT CMOS DECODER/DRIVER |
| 中文描述： | 總線兼容4位的CMOS譯碼器/驅動器 |
| 文件頁數： | 1/7頁 |
| 文件大小： | 88K |
| 代理商： | TC7211AM |
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TC7211AM
BUS COMPATIBLE 4-DIGIT CMOS DECODER/DRIVER
FEATURES
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4-Digit Non-Multiplexed 7-Segment LCD Outputs
With Backplane Driver
Input and Digit Select Data Latches
RC Oscillator On-Chip Generates Backplane
Drive Signal
Eliminates DC Bias Which Degrades LCD Life
Backplane Input/Output Pin Permits
Synchronization of Cascaded Slave Device to
a Master Backplane Signal
Binary and BCD Inputs Decoded to Code B
(0 to 9, —, E, H, L, P, Blank)
Pin Compatible and Functionally Equivalent to
ICM7211AM
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GENERAL DESCRIPTION
The TC7211AM (LCD Decoder/driver) is a CMOS di-
rect drive, 4-digit, 7-segment display decoder and driver.
The TC7211AM drives conventional LCDs. An RC os-
cillator, divider chain, backplane driver, and 28-segment
outputs are provided on a single CMOS chip. The segment
drivers supply square waves of the same frequency as the
backplane, but in-phase for an OFF segment and out-of-
phase for an ON segment. The net DC voltage applied
between driver segment and backplane is near zero maxi-
mizing display lifetime.
The four bit binary input is decoded into the seven
segment alphanumeric code known as "Code B". The "Code
B" output format results in a 0 to 9,—, E, H, L, P or blank
display. True BCD or binary inputs will be correctly de-
coded to the seven segment display format.
ORDERING INFORMATION
Driver
Type
Input
Output
Config.
Part No.
Package Code
Data and
Digit Select
Latches
TC7211AMIPL
LCD
40-Pin
Plastic DIP
Code B
PIN CONFIGURATIONS
TC7211AM-4 11/14/96
TC7211AM (LCD)
1
2
3
4
D1
5
6
7
8
9
10
11
12
A1
OSCILLATOR
B2
V
+
E1
D2
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
G1
F1
BP
A2
B2
C2
E2
G2
F2
A3
B3
C3
D3
E3
G3
F3
C1
B1
GND
B3
B1
B0
F4
G4
E4
D4
C4
B4
A4
DATA
INPUTS
CHIP SELECT 2 (CS2)
CHIP SELECT 1 (CS1)
DIGIT SELECT 2 (DS2
DIGIT SELECT 1 (DS1
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相關代理商/技術參數 |
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