PCD3745AT View Datasheet(PDF) - Philips Electronics
Part Name
Description
Manufacturer
PCD3745AT
Philips Electronics
PCD3745AT Datasheet PDF : 32 Pages
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Philips Semiconductors
8-bit microcontroller with 4.5 kbytes OTP
memory and 32 kHz real-time clock
Product specification
PCD3745A
5.2 Pin description
Table 1 SOT117-1 and SOT136-1 packages
SYMBOL
P0.0 to P0.7
T1
XTAL1
XTAL2
RESET
CE/T0
P1.0 to P1.6
P1.7/RCO
RTC1
VSS
RTC2
VDD
EMUN
CLK1
CLK2
PIN
28, 1 to 7
8
9
10
11
12
13 to 19
20
21
22
23
24
25
26
27
DESCRIPTION
Port 0: 8 quasi-bidirectional I/O lines
Test 1 or count input of 8-bit Timer/event counter 1
crystal oscillator or external clock input
crystal oscillator output
reset input
chip enable or Test 0
Port 1: 7 quasi-bidirectional I/O lines
Port 1: 1 quasi-bidirectional I/O line/Real Clock Output 16 kHz
RTC 32 kHz oscillator input
ground
RTC 32 kHz oscillator output
positive supply voltage
emulation pin, must be connected to VDD for normal mode operation.
count input of 16-bit peripheral Counter 1
count input of 16-bit peripheral Counter 2
Table 2 SOT358-1 package
SYMBOL
n.c.
T1
XTAL1
XTAL2
RESET
CE/T0
P1.0 to P1.6
P1.7/RCO
RTC1
VSS
RTC2
VDD
EMUN
CLK1
CLK2
P0.0 to P0.7
PIN
1, 13, 17, 28
5
6
7
8
9
10 to 12,
14 to 16, 18
19
20
21
22
23
24
25
26
27, 29 to 32,
2 to 4
DESCRIPTION
not connected
Test 1 or count input of 8-bit Timer/event counter 1
crystal oscillator or external clock input
crystal oscillator output
reset input
chip enable or Test 0
Port 1: 7 quasi-bidirectional I/O lines
Port 1: 1 quasi-bidirectional I/O line/Real Clock Output 16 kHz
RTC 32 kHz oscillator input
ground
RTC 32 kHz oscillator output
positive supply voltage
emulation pin, must be connected to VDD for normal mode operation.
count input of 16-bit peripheral Counter 1
count input of 16-bit peripheral Counter 2
Port 0: 8 quasi-bidirectional I/O lines
1999 Feb 02
6
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