CF5705 查看數據表（PDF） - Nippon Precision Circuits
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CF5705 Datasheet PDF : 7 Pages
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NIPPON PRECISION CIRCUITS INC.
CF5705 series
Analog Watch Stepping Motor Driver
OVERVIEW
The CF5705 series is a low-current analog watch stepping motor driver CMOS IC with built-in 32.768 kHz
crystal oscillator circuit.
FEATURES
s 32.768 kHz crystal oscillator circuit
CG and CD built-in
s −3.6 to −1.2 V operating supply voltage range
s Operating current consumption
• VSS = –1.55V, CD = 16pF: 250 nA (max)
• VSS = –2.8V, CD = 26pF: 1000 nA (max)
Note: Current consumption depends on the built-in capacitor.
s Reset function
4 Hz and subsequent frequency dividers are reset
SERIES LINEUP
Pad coordinates
Motor
Version
CF5705AA
CF5705BC
CF5705AD
CF5705AE
CF5705CF
CF5705CG
1
2
3
4
XT XTN RESET VSS
VSS RESET XT XTN
XT XTN RESET VSS
XT XTN RESET VSS
VSS TEST XTN XT
VSS TEST XTN XT
5
TEST
VDD
TEST
TEST
VDD
VDD
6
OUT2
OUT2
OUT2
OUT2
OUT2
OUT2
Cycle Pulse
7
8 (Tcy/2) (Tpw)
sec sec
OUT1 VDD
1
4.9m
OUT1 TEST 250m 23.4m
OUT1 VDD
1 23.4m
OUT1 VDD 20 5.9m
OUT1 RESET 1
4.9m
OUT1 RESET 1
3.9m
Test
(Tcy)
sec
125m
125m
125m
125m
62.5m
62.5m
1. Parasitic capacitance is included. Parasitic capacitance: CG = CD = 4pF
Built-in
capacitor1
CG
CD
pF
pF
4
16
4
26
4
30
4
16
4
16
4
16
PART NUMBER GUIDE
CF5705
Function(Motor, Built-in capacitor)
Pad coordinate
ORDERING INFORMATION
Device
C F 5 7 0 5 ××
Package
Chip form
NIPPON PRECISION CIRCUITS—1
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