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Teilenummer | e1217X |
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Beschreibung | 32-kHz Standard Watch CMOS ic | |
Hersteller | ATMEL Corporation | |
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Gesamt 5 Seiten 32-kHz Standard Watch CMOS IC
e1217X
Features
www.datasheet4u.com
D 32-kHz oscillator
D 1.3 V to 1.8 V operating-voltage range
D 180 nA typical current consumption
D Voltage regulator
D Integrated capacitors, mask selectable
D Mask options for pad designation, motor period and
motor pulse width
D Low resistance outputs for bipolar stepping motor
D Motor fast-test function
Pad Configuration
1
8
2
e1217X
7
36
45
95 9979
Figure 1. Chip size 1.06 mm x 1.02 mm
Pad size: 112 mm x 112 mm
Pad window: 100 mm x 100 mm
General Description
The e1217X is an integrated circuit in CMOS Silicon
Gate Technology for analog watches. It consists of a
32-kHz oscillator, frequency dividers down to 1/64 Hz,
output pulse formers and push-pull motor drivers. For
tuning of the crystal, integrated capacitors are provided
(selectable mask option). Low current consumption and
high oscillator stability are enabled by an on-chip voltage
regulator.
Pin
1, 4
5, 6, 8
1 to 4
(7/5) or (7/6)
1 to 5, 8
1 to 5, 8
Symbol
VSS
VDD
OSCIN/
OSCOUT
MOT 1/2
RESET
TEST
Function
Negative supply voltage
Positive supply voltage
Oscillator input/output
Motor drive outputs
Reset input
Test input/output
Absolute Maximum Ratings
Parameters
Supply voltage
Input voltage range, all inputs
Output short circuit duration
Power dissipation (DIL package)
Operating ambient temperature range
Storage temperature range
Lead temperature during soldering at 2 mm
distance, 10 s
Symbol
VSS
VIN
Ptot
Tamb
Tstg
Tsld
Value
–0.3 to +5
(VSS–0.3 V) ≤ VIN ≤ (VDD + 0.3 V)
indefinite
125
–20 to +70
–40 to +125
260
Unit
V
V
mW
°C
°C
°C
Absolute maximum ratings define parameter limits electrostatic discharges. However, precautions to mini-
which, if exceeded, may permanently change or damage mize the build-up of electrostatic charges during handling
the device.
are recommended.
All inputs and outputs on Atmel Wireless & The circuit is protected against supply-voltage reversal
Microcontrollers’ circuits are protected against for typically 5 minutes.
Rev. A2, 12-Dec-00
1 (5)
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Seiten | Gesamt 5 Seiten | |
PDF Download | [ e1217X Schematic.PDF ] |
Teilenummer | Beschreibung | Hersteller |
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