ICM7213
August 1997
One Second/One Minute
Timebase Generator
Description
The ICM7213 is a fully integrated micropower oscillator and
frequency divider with four buffered outputs suitable for inter-
facing with most logic families. The power supply may be
either a two battery stack (Ni-cad, alkaline, etc.) or a regular
power supply greater than 2V. Depending upon the state of
the WIDTH, INHIBIT, and TEST inputs, using a
4.194304MHz crystal will produce a variety of output fre-
quencies including 2048Hz, 1024Hz, 34.133Hz, 16Hz, 1Hz,
and
1
/
60
Hz (plus composites).
The ICM7213 utilizes a very high speed low power metal
gate CMOS technology which uses 6.4V zeners between the
drains and sources of each transistor and also across the
supply terminals. Consequently, the ICM7213 is limited to a
6V maximum V
SUPPLY
, although a simple dropping network
can be used to extend the V
SUPPLY
range well above 6V
(See Figure 9).
Features
鈥?Guaranteed 2V Operation
鈥?Very Low Current Consumption (Typ) . . . . 100碌A(chǔ) at 3V
鈥?All Outputs TTL Compatible
鈥?On Chip Oscillator Feedback Resistor
鈥?Oscillator Requires Only 3 External components:
Fixed Capacitor, Trim Capacitor, and A Quartz Crystal
鈥?Output Inhibit Function
鈥?4 Simultaneous Outputs: One Pulse/s, One Pulse/Min,
16Hz and Composite 1024 + 16 + 2Hz Outputs
鈥?Test Speed-Up Provides Other Frequency Outputs
Ordering Information
PART NUMBER
ICM7213IPD
TEMP.
RANGE (
o
C)
-25 to 85
PACKAGE
14 Ld PDIP
PKG.
NO.
E14.3
Pinout
ICM7213
(PDIP)
TOP VIEW
WIDTH 1
OUT 3 2
INHIBIT 3
V
SS
4
OSC OUT 5
OSC IN 6
N/C 7
14 OUT 4
13 OUT 2
12 OUT 1
11 TEST
10 V
DD
9 N/C
8 N/C
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207
|
Copyright
漏
Intersil Corporation 1999
File Number
3165.1
9-9
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