S-35399A02 Datasheet, PDF (2/55 Pages) Seiko Instruments Inc – 2-WIRE REAL-TIME CLOCK

2-WIRE REAL-TIME CLOCK
S-35399A02
„ Pin Configuration
„ Marking Specifications
WLP-12A
Bottom View
D3 C3 B3 A3
F32K VDD SCL _INT2
D2 C2 B2 A2
FOUT _INT1 CTRL SDA
D1 C1 B1 A1
VDDL XOUT XIN VSS
(1.84 × 1.97 × 0.6 max)
Figure 1
Top View
Rev.1.0_00
399A
0 2 (1) (2)
Lot number
Figure 2
„ List of Pin
Table 1
Pin No.
A1
B1
C1
D1
A2
B2
C2
D2
A3
B3
C3
D3
Symbol
VSS
XIN
XOUT
VDDL
SDA
CTRL
INT 1
FOUT
INT2
SCL
VDD
F32K
Description
I/O
Configuration
GND pin
−
−
Connection pin for
crystal oscillator
−
−
Power supply pin for FOUT
output
−
−
Nch open-drain output
I/O pin for serial data
Bi-directional (no protective diode at VDD)
CMOS input
CMOS input
Control pin for F32K output
Input
(built-in pull-down resistor. no protective diode at
VDD)
Output pin for interrupt signal
Output
Nch open-drain output
(no protective diode at VDD)
Output pin for clock pulse
signal
Output CMOS output
Output pin for interrupt signal
2
Output
Nch open-drain output
(built-in pull-down resistor. no protective diode at
VDD)
Input pin for serial clock
Input
CMOS input
(no protective diode at VDD)
Pin for positive power supply
−
−
Pin for 32.768 kHz output
Output
Nch open-drain output
(no protective diode at VDD)
2
Seiko Instruments Inc.