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PCD3745AP Datasheet(PDF) 6 Page - NXP Semiconductors |
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PCD3745AP Datasheet(HTML) 6 Page - NXP Semiconductors |
6 / 32 page 1999 Feb 02 6 Philips Semiconductors Product specification 8-bit microcontroller with 4.5 kbytes OTP memory and 32 kHz real-time clock PCD3745A 5.2 Pin description Table 1 SOT117-1 and SOT136-1 packages Table 2 SOT358-1 package SYMBOL PIN DESCRIPTION P0.0 to P0.7 28, 1 to 7 Port 0: 8 quasi-bidirectional I/O lines T1 8 Test 1 or count input of 8-bit Timer/event counter 1 XTAL1 9 crystal oscillator or external clock input XTAL2 10 crystal oscillator output RESET 11 reset input CE/T0 12 chip enable or Test 0 P1.0 to P1.6 13 to 19 Port 1: 7 quasi-bidirectional I/O lines P1.7/RCO 20 Port 1: 1 quasi-bidirectional I/O line/Real Clock Output 16 kHz RTC1 21 RTC 32 kHz oscillator input VSS 22 ground RTC2 23 RTC 32 kHz oscillator output VDD 24 positive supply voltage EMUN 25 emulation pin, must be connected to VDD for normal mode operation. CLK1 26 count input of 16-bit peripheral Counter 1 CLK2 27 count input of 16-bit peripheral Counter 2 SYMBOL PIN DESCRIPTION n.c. 1, 13, 17, 28 not connected T1 5 Test 1 or count input of 8-bit Timer/event counter 1 XTAL1 6 crystal oscillator or external clock input XTAL2 7 crystal oscillator output RESET 8 reset input CE/T0 9 chip enable or Test 0 P1.0 to P1.6 10 to 12, 14 to 16, 18 Port 1: 7 quasi-bidirectional I/O lines P1.7/RCO 19 Port 1: 1 quasi-bidirectional I/O line/Real Clock Output 16 kHz RTC1 20 RTC 32 kHz oscillator input VSS 21 ground RTC2 22 RTC 32 kHz oscillator output VDD 23 positive supply voltage EMUN 24 emulation pin, must be connected to VDD for normal mode operation. CLK1 25 count input of 16-bit peripheral Counter 1 CLK2 26 count input of 16-bit peripheral Counter 2 P0.0 to P0.7 27, 29 to 32, 2to4 Port 0: 8 quasi-bidirectional I/O lines |
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