PCF8523 NXP [NXP Semiconductors], PCF8523 Datasheet - Page 5

• Manufacturer Part Number: PCF8523
• Description: Real-Time Clock (RTC) and calendar
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
Table 3.
[1]
[2]
[3]
[4]
PCF8523
Product data sheet
Symbol
OSCI
OSCO
n.c.
V
V
INT2
CLKOUT
SDA
SCL
INT1/CLKOUT 7
V
BAT
SS
DD
Wire length between quartz and package should be minimized.
For manufacturing tests only; do not connect it and do not use it.
The die paddle (exposed pad) is connected to V
The substrate (rear side of the die) is connected to V
Pin description
Pin
SO8
(PCF8523T)
1
2
-
3
4
-
-
5
6
8
7.2 Pin description
Fig 5.
TSSOP14
(PCF8523TS)
1
2
3, 6, 9, 12
4
5
7
8
10
11
13
14
Viewed from active side. For mechanical details, see
Pin configuration for PCF8523U
All information provided in this document is subject to legal disclaimers.
[2]
SS
1
7
HVSON8
(PCF8523TK)
2
-
3
4
-
-
5
6
8
OSCO
[3]
and should be electrically isolated.
OSCI
INT2
V
V
Rev. 3 — 30 March 2011
n.c.
BAT
SS
SS
and should be electrically isolated.
2
3
4
5
6
7
PCF8523U
2
3
6 and 11
4
5
7
8
9
10
12
1
[4]
PCF8523U
[2]
Type
input
output
-
supply
supply
output
output
input/output serial data input/output
input
output
supply
013aaa317
Real-Time Clock (RTC) and calendar
12
11
10
Figure 39 on page
1
9
8
n.c.
V
INT1/CLKOUT
SCL
SDA
CLKOUT
DD
Description
oscillator input;
high-impedance node
oscillator output;
high-impedance node
not connected; do not connect
and do not use it as feed through
battery supply voltage
ground supply voltage
interrupt 2 (open-drain, active
LOW)
clock output (open-drain)
serial clock input
interrupt 1/clock output
(open-drain)
supply voltage
55.
PCF8523
© NXP B.V. 2011. All rights reserved.
[1]
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