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SE370C742AJCT Datasheet(PDF) 2 Page - Texas Instruments |
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SE370C742AJCT Datasheet(HTML) 2 Page - Texas Instruments |
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2 / 69 page  TMS370Cx4x 8-BIT MICROCONTROLLER SPNS016C -- NOVEMBER 1992 -- REVISED FEBRUARY 1997 2 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251--1443 Pin Descriptions PIN NO. TYPE† DESCRIPTION DIP (40) LCC (44) TYPE DESCRIPTION A0 A1 A2 A3 A4 A5 A6 A7 18 17 16 15 14 13 11 10 20 19 18 17 16 15 13 12 I/O Port A pins are general-purpose bidirectional I/O ports. B0 B1 B2 39 40 1 44 1 2 I/O Port B pins are general-purpose bidirectional I/O ports. D3 D4 D5 D6 D7 21 20 35 22 19 23 22 40 24 21 I/O Port D pins are general-purpose bidirectional I/O ports. D3 is also configurable as SYSCLK. AN0/E0 AN1/E1 AN2/E2 AN3/E3 AN4/E4 AN5/E5 AN6/E6 AN7/E7 — — 23 24 — — 27 28 25 26 27 28 30 31 32 33 I Analog-to-digital converter 1 (ADC1) analog input channels or positive reference pins; any ADC1 channel can be programmed as general-purpose input pin (E port) if not used as an analog input or reference channel. VCC3 VSS3 26 25 11 29 ADC1 converter positive supply voltage and optional positive reference input pin ADC1 converter ground supply and low reference input pin INT1 INT2 INT3 6 7 8 7 8 9 I I/O I/O External (non-maskable or maskable) interrupt/general-purpose input pin External maskable interrupt input/general-purpose bidirectional pin External maskable interrupt input/general-purpose bidirectional pin T1IC/CR T1PWM T1EVT 31 30 29 36 35 34 I/O Timer 1 input capture/counter reset input pin/general-purpose bidirectional pin Timer 1 pulse-width-modulation output pin/general-purpose bidirectional pin Timer 1 external event input pin/general-purpose bidirectional pin T2AIC1/CR T2AIC2/PWM T2AEVT 4 3 2 5 4 3 I/O Timer 2A input capture/counter reset input pin/general-purpose bidirectional pin Timer 2A input capture 2/PWM output pin/general-purpose bidirectional pin Timer 2A external event input pin/general-purpose bidirectional pin SCITXD SCIRXD SCICLK 38 37 36 43 42 41 I/O SCI transmit data output pin/general-purpose bidirectional pin ‡ SCI receive data input pin/general-purpose bidirectional pin SCI bidirectional serial clock pin/general-purpose bidirectional pin RESET 5 6 I/O System reset bidirectional pin. As input, RESET initializes microcontroller; as open-drain output, RESET indicates detection of an internal fault by the watchdog or oscillator fault cir- cuit. MC 34 39 I Mode control input pin; enables the EEPROM write-protection-override (WPO) mode, also EPROM VPP. XTAL1 XTAL2/CLKIN 32 33 37 38 I O Internal-oscillator output for crystal Internal-oscillator crystal input/external clock source input VCC VSS 9 12 10 14 Positive supply voltage Ground reference † I = input, O = output ‡ The three-pin configuration SCI is referred to as SCI1. |
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