tc7211am ETC-unknow, tc7211am Datasheet
tc7211am
Manufacturer Part Number
tc7211am
Description
Compatible 4-digit Cmos Decoder/driver
Manufacturer
ETC-unknow
Datasheet
1.TC7211AM.pdf
(7 pages)
FEATURES
PIN CONFIGURATIONS
BUS COMPATIBLE 4-DIGIT CMOS DECODER/DRIVER
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
TELCOM SEMICONDUCTOR, INC.
D2
E2
G2
F2
A3
B3
C3
D3
E3
G3
A4
V
E1
G1
F1
BP
A2
B2
C2
F3
+
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
TC7211AM (LCD)
39
32
31
30
28
40
38
37
36
35
34
33
29
27
26
25
24
23
22
21
A1
OSCILLATOR
GND
CHIP SELECT 2 (CS2)
CHIP SELECT 1 (CS1)
DIGIT SELECT 2 (DS2
DIGIT SELECT 1 (DS1
B3
B2
B1
B0
F4
G4
E4
D4
C4
B4
D1
C1
B1
DATA
INPUTS
GENERAL DESCRIPTION
rect drive, 4-digit, 7-segment display decoder and driver.
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.
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
Part No.
TC7211AMIPL
The TC7211AM (LCD Decoder/driver) is a CMOS di-
The TC7211AM drives conventional LCDs. An RC os-
The four bit binary input is decoded into the seven
Driver
Type
LCD
Package Code
40-Pin
Plastic DIP
Input
Code B
TC7211AM
TC7211AM-4 11/14/96
Digit Select
Data and
Config.
Output
Latches
6-7
1
2
3
4
5
6
7
8
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