TMS370CX1X_14 Datasheet, PDF (2/52 Pages) Texas Instruments – 8-BIT MICROCONTROLLER

TMS370Cx1x
8-BIT MICROCONTROLLER
SPNS012F -- MAY 1987 -- REVISED FEBRUARY 1997
Pin Descriptions
28 PINS
DIP and LCC
NAME
NO.
A0
14
A1
13
A2
11
A3
10
A4
9
A5
8
A6
7
A7
3
D3
28
D4
26
D5
15
D6
1
D7
2
INT1
16
INT2
17
INT3
18
T1IC/CR
22
T1PWM
21
T1EVT
20
SPISOMI
25
SPISIMO
23
SPICLK
24
RESET
27
MC
19
XTAL2/CLKIN
5
XTAL1
6
V_CC
4
V_SS
12
† _{I = input, O = output}
I/O^†
DESCRIPTION
I/O Port A is a general-purpose bidirectional I/O port.
I/O Port D is a general-purpose bidirectional I/O port. D3 is also configurable as SYSCLK.
I
External interrupt (non-maskable or maskable)/general-purpose input pin
I/O External maskable interrupt input/general-purpose bidirectional pin
I/O External maskable interrupt input/general-purpose bidirectional pin
Timer1 input capture/counter reset input pin/general-purpose bidirectional pin
I/O Timer1 PWM output pin/general-purpose bidirectional pin
Timer1 external event input pin/general-purpose bidirectional pin
SPI slave output pin, master input pin/general-purpose bidirectional pin
I/O SPI slave input pin, master output pin/general-purpose bidirectional pin
SPI bidirectional serial clock pin/general-purpose bidirectional pin
I/O
System reset bidirectional pin; as input pin, RESET initializes the microcontroller; as open-drain output,
RESET indicates that an internal failure was detected by watchdog or oscillator fault circuit.
I
Mode control input pin; enables EEPROM write protection override (WPO) mode, also EPROM V_PP
I
Internal oscillator crystal input/External clock source input
O Internal oscillator output for crystal
Positive supply voltage
Ground reference
All trademarks are the property of their respective owners.
2
 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251--1443