CF5705AE

CF5705 series NIPPON PRECISION CIRCUITS INC. 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 s 32.768 kHz crystal oscillator circuit CG and CD built-in −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 P ad coordinates Version 1 CF5705AA CF5705BC CF5705AD CF5705AE CF5705CF CF5705CG XT VSS XT XT VSS VSS 2 XTN RESET XTN XTN TEST TEST 3 RESET XT RESET RESET XTN XTN 4 VSS XTN VSS VSS XT XT 5 TEST VDD TEST TEST VDD VDD 6 OUT2 OUT2 OUT2 OUT2 OUT2 OUT2 7 OUT1 OUT1 OUT1 OUT1 OUT1 OUT1 8 VDD TEST VDD VDD RESET RESET C y c le (Tcy/2) sec 1 250m 1 20 1 1 Motor Pulse (Tpw) sec 4.9m 23.4m 23.4m 5.9m 4.9m 3.9m Test (Tcy) sec 125m 125m 125m 125m 62.5m 62.5m Built-in capacitor 1 CG pF 4 4 4 4 4 4 CD pF 16 26 30 16 16 16 1. Parasitic capacitance is included. Parasitic capacitance: C G = C D = 4pF PART NUMBER GUIDE CF5705 Function(Motor, Built-in capacitor) Pad coordinate ORDERING INFORMATION D e vice C F 5 7 0 5 ×× P ackag e Chip form NIPPON PRECISION CIRCUITS—1 CF5705 series PAD DIMENSIONS (Top view) (1000,1060) NPC PAD COORDINATES Number 1 2 3 4 5 X ( µm ) 155 155 155 155 844 844 844 844 Y ( µ...