Document
CF5760 series
NIPPON PRECISION CIRCUITS INC.
CMOS Analog Clock IC
OVERVIEW
The CF5760 series devices are analog clock ICs that derive their timing from a 32.768 kHz oscillator element. They feature a reset function (optional seconds control function) which can be used to maintain accurate time. Various alarm functions and motor outputs are available to match a wide range of clock specifications.
FEATURES
I I I I I I I I
PAD LAYOUT
Top view
1.2 to 2.0V operating supply voltage 1.2µA (typ) / 1.5V current consumption 32.768 kHz oscillator circuit Oscillator capacitance CG and CD built-in Alarm output function Reset function (optional seconds control function) Input chattering elimination function (AI/R) Chip form (CF5760××)
VDD AI/R O1
1 2
9 8
XT XTN AON AO VSS
3 7 6
O2 (0,0)
4
HA5760
5
Chip size: 0.76 × 1.21 mm Chip thickness: 300 ± 30 µm P ad size: 100 × 100 µm R e verse side: V D D level
SERIES CONFIGURATION
CF5760AA
Built-in capacitance 1 C (pF) D C G (pF) 3 25 H I G H / L OW LOW 1 23.4 AO HIGH 4 8 900 900 AO N LOW 4 8 900 900 AO HIGH DC – 900 10
C F 5 7 6 0 BA
3 25 H I G H / L OW LOW 1 23.4 AO N F
(32kHz)
CF5760CC
3 33 LOW/HIGH HIGH 1 31.25 AO HIGH 2 8+1 900 900 AO N LOW 2 8+1 900 900
C F 5 7 6 0 DA
3 25 LOW/HIGH LOW 1 27.3 AO HIGH DC – 900 10 AO N F
(32kHz)
CF5760EA
3 25 –/LOW – 1 1000 AO – – – – – AO N – – – – –
CF5760FC
3 33 LOW/HIGH – 0.0625 62.5 AO HIGH 2 8+1 900 900 AO N LOW 2 8+1 900 900
CF5760HA
3 25 LOW/HIGH HIGH 1 46.875 AO HIGH 2 8+1 900 900 AO N LOW 2 8+1 900 900
C F 5 7 6 0 JA
3 25 LOW/HIGH – 0.0625 62.5 AO HIGH DC – 900 10 AO N F
(32kHz)
Alarm input/reset input level Active level Motor output Needle period tC Y (s) Pulsewidth tP W (ms) Pins Active level Frequency fP W (kHz) Modulation fC Y (Hz) IO H min ( µA) IO L min ( µA)
– – 10 10
– – 10 10
– – 10 10
Alarm output
1. Built-in capacitance includes the parasitic capacitance.
ORDERING INFORMATION
D e vice C F 5 7 6 0 ×× P ackag e Chip form
NIPPON PRECISION CIRCUITS—1
CF5760 series
BLOCK DIAGRAM
VSS
VDD
CG
XT
CD
7 Stage Divider
9 Stage Divider
XTN AI/R Reset Input
Alarm Input
Alarm Output Control
Motor Output Control
AO
AON
O1
O2
PAD DESCRIPTION/DIMENSIONS
Dimensions (µm) No. 1 2 3 4 5 6 7 8 9 Name VDD AI/R O1 O2 VSS AO AO N XTN XT Supply Alarm input and reset input Motor output 1 Motor output 2 Ground Alarm output 1 Alarm output 2 Oscillator output Oscillator input Description X 155 155 155 145 615 615 615 615 615 Y 1065 854 620 145 145 325 505 746 1065
NIPPON PRECISION CIRCUITS—2
CF5760 series
SPECIFICATIONS
Absolute Maximum Ratings
P arameter Supply voltage range Input voltage range Operating temperature range Storage temperature range Symbol VDD − VSS V IN T opr T stg Condition Rating −0.3 to 5.0 V S S ≤ V IN ≤ V D D −30 to 80 −65 to 150 Unit V V °C °C
Electrical Characteristics
Ta = 25°C, VDD = 1.5V, VSS = 0V, CG = 23pF, CD = 25pF, X’tal (f0 = 32.768kHz, CI = 50kΩ max) unless otherwise noted
Rating P arameter Operating voltage Cu.