AT89LP214 Atmel Corporation, AT89LP214 Datasheet - Page 4

• Manufacturer Part Number: AT89LP214
• Manufacturer: Atmel Corporation

Specifications of AT89LP214

• Flash (kbytes): 2 Kbytes
• Max. Operating Frequency: 20 MHz
• Cpu: 8051-1C
• Max I/o Pins: 12
• Spi: 1
• Uart: 1
• Sram (kbytes): 0.125
• Operating Voltage (vcc): 2.4 to 5.0
• Timers: 2
• Isp: SPI/OCD
• Watchdog: Yes

Table 3-2.
4
Pin
10
11
12
13
14
1
2
3
4
5
6
7
8
9
Symbol
AT89LP213/214
GND
VCC
P1.5
P1.7
P1.3
P1.2
P3.0
P3.2
P3.3
P3.1
P1.0
P1.1
P1.4
P1.6
AT89LP214 Pin Description
Type
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
Description
P1.5: User-configurable I/O Port 1 bit 5.
MOSI: SPI master-out/slave-in. When configured as master, this pin is an output. When configured as
slave, this pin is an input.
GPI5: General-purpose Interrupt input 5.
P1.7: User-configurable I/O Port 1 bit 7.
SCK: SPI Clock. When configured as master, this pin is an output. When configured as slave, this pin is
an input.
GPI7: General-purpose Interrupt input 7.
P1.3: User-configurable I/O Port 1 bit 3 (if Reset Fuse is disabled).
RST: External Active-Low Reset input (if Reset Fuse is enabled.
GPI3: General-purpose Interrupt input 3.
DCL: Serial Clock input for On-chip Debug Interface.
Ground
P1.2: User-configurable I/O Port 1 bit 2.
GPI2: General-purpose Interrupt input 2.
P3.0: User-configurable I/O Port 3 bit 0.
RXD: Serial Port Receiver input.
P3.2: User-configurable I/O Port 3 bit 2.
XTAL1: Input to the inverting oscillator amplifier and internal clock generation circuits. It may be used as
a port pin if the internal RC oscillator is selected as the clock source.
DDA: Serial Data input/output for On-chip Debug Interface when OCD is enabled and the internal RC
oscillator is selected as the clock source.
P3.3: User-configurable I/O Port 3 bit 3.
XTAL2: Output from inverting oscillator amplifier. It may be used as a port pin if the internal
RC oscillator is selected as the clock source.
CLKOUT: When the internal RC oscillator is selected as the clock source, may be used to output the
internal clock divided by 2.
DDA: Serial Data input/output for On-chip Debug Interface when OCD is enabled and the external clock
is selected as the clock source.\
P3.1: User-configurable I/O Port 3 bit 1.
TXD: Serial Port Transmitter output.
Supply Voltage
P1.0: User-configurable I/O Port 1 bit 0.
AIN0: Analog Comparator Positive input.
GPI0: General-purpose Interrupt input 0.
P1.1: User-configurable I/O Port 1 bit 1.
AIN1: Analog Comparator Negative input.
GPI1: General-purpose Interrupt input 1
P1.4: User-configurable I/O Port 1 bit 4.
SS: SPI slave select input.
GPI4: General-purpose Interrupt input 4.
P1.6: User-configurable I/O Port 1 bit 6.
MISO: SPI master-in/slave-out. When configured as master, this pin is an input. When configured
as slave, this pin is an output.
GPI6: General-purpose Interrupt input 6.
See “External Reset” on page
3538E–MICRO–11/10
16).