PC8523-1(2012) Просмотр технического описания (PDF) - NXP Semiconductors.
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PC8523-1 Datasheet PDF : 74 Pages
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NXP Semiconductors
PCF8523
Real-Time Clock (RTC) and calendar
OSCI
2
OSCO
3
1
VDD
12 INT1/CLKOUT
11 n.c.
VBAT
4
PCF8523U
10 SCL
VSS
5
n.c.
6
9
SDA
INT2
7
8
CLKOUT
013aaa317
Viewed from active side. For mechanical details, see Figure 40 on page 57.
Fig 5. Pin configuration for PCF8523U
7.2 Pin description
Table 5.
Symbol
OSCI
Pin description
Pin
SO8
(PCF8523T)
1
OSCO
2
n.c.
-
VBAT
3
VSS
4
INT2
-
CLKOUT
-
SDA
5
SCL
6
INT1/CLKOUT 7
VDD
8
Type
Description
HVSON8
TSSOP14 PCF8523U
(PCF8523TK) (PCF8523TS)
1
1
2
input
oscillator input;
high-impedance node[1]
2
2
3
output
oscillator output;
high-impedance node[1]
-
3, 6, 9, 12[2] 6 and 11[2] -
not connected; do not connect
and do not use it as feed through
3
4
4
supply
battery supply voltage
4[3]
5
5[4]
supply
ground supply voltage
-
7
7
output
interrupt 2 (open-drain, active
LOW)
-
8
8
output
clock output (open-drain)
5
10
9
input/output serial data input/output
6
11
10
input
serial clock input
7
13
12
output
interrupt 1/clock output
(open-drain)
8
14
1
supply
supply voltage
[1] Wire length between quartz and package should be minimized.
[2] For manufacturing tests only; do not connect it and do not use it.
[3] The die paddle (exposed pad) is connected to VSS and should be electrically isolated.
[4] The substrate (rear side of the die) is connected to VSS and should be electrically isolated.
PCF8523
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 5 July 2012
© NXP B.V. 2012. All rights reserved.
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