Intersil Corporation ICM7213 Datasheet
August 1997
ICM7213
One Second/One Minute
Timebase Generator
Features
• Guaranteed 2V Operation
• Very Low Current Consumption (Typ) . . . .100µA at 3V
• All Outputs TTL Compatible
• On Chip Oscillator Feedback Resistor
• Oscillator Requires Only 3 External components:
Fixed Capacitor, Trim Capacitor, and A Quartz Crystal
• Output Inhibit Function
• 4 Simultaneous Outputs: One Pulse/s, One Pulse/Min,
16Hz and Composite 1024 + 16 + 2Hz Outputs
• Test Speed-Up Provides Other Frequency Outputs
Ordering Information
TEMP.
PART NUMBER
ICM7213IPD -25 to 85 14 Ld PDIP E14.3
RANGE (oC) PACKAGE
PKG.
NO.
Pinout
Description
The ICM7213 is a fully integrated micropower oscillator and
frequency divider with four buff ered outputs suitab le for interfacing 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 frequencies including 2048Hz, 1024Hz, 34.133Hz, 16Hz, 1Hz,
1
and
/60Hz (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
can be used to extend the V
(See Figure 9).
, although a simple dropping network
SUPPLY
range well above 6V
WIDTH
OUT 3
INHIBIT
V
SS
OSC OUT
OSC IN
N/C
ICM7213
TOP VIEW
1
2
3
4
5
6
7
(PDIP)
14
13
12
11
10
9
8
OUT 4
OUT 2
OUT 1
TEST
V
DD
N/C
N/C
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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| Copyright © Intersil Corporation 1999
9-9
File Number 3165.1
Functional Block Diagram
ICM7213
OSC IN
6
5
OSC OUT
n
14
OUT 4
WIDTH
(4,194,304Hz)
OSCILLATOR
R
F
1
(8192Hz) (1024Hz) (64Hz) (16Hz) (4Hz)
9
2
÷
n
V
DD
10
V
SS
2
÷
3
INHIBIT
OR RESET
4
2
÷
1
/60Hz) (1/2Hz) (1Hz) (2Hz)
(
÷
(5 x 3 x 2)
34
11
TEST OUT 2 OUT 1
2
2
÷
2
÷
13 12
nn
2
2
÷
2
÷
2
÷
n
n
2
OUT 3
9-10
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