AT89LP214-20XU Atmel, AT89LP214-20XU Datasheet - Page 54

• Manufacturer Part Number: AT89LP214-20XU
• Description: MCU 8051 2K FLASH 20MHZ 14-TSSOP
• Manufacturer: Atmel
• Series: 89LPr

Specifications of AT89LP214-20XU

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 12
• Program Memory Size: 2KB (2K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 14-TSSOP
• Package: 14TSSOP
• Device Core: 8051
• Family Name: AT89
• Maximum Speed: 20 MHz
• Operating Supply Voltage: 2.5|3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 12
• Interface Type: SPI/UART
• Number Of Timers: 2
• Core: 8051
• Processor Series: AT89x
• Maximum Clock Frequency: 20 MHz
• Data Ram Size: 128 B
• Mounting Style: SMD/SMT
• Height: 1.05 mm
• Length: 5.1 mm
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.4 V
• Width: 4.5 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

54
AT89LP213/214
Figure 18-2. SPI Shift Register Diagram
Figure 18-3. SPI Block Diagram
Transmit
Serial In
Byte
÷4÷8÷32÷64
SPI Status Register
Oscillator
Select
Divider
SPI Control
8
MUX
8
SPI Clock (Mater)
2:1
SPI Interrupt
Request
8
Parallel Master
Serial Master
(Write Buffer)
D
CLK
D
CLK
LATCH
LATCH
MSTR
SPE
8
MSB
Data Bus
Internal
Q
Q
8
Read Data Buffer
Write Data Buffer
7
8-bit Shift Register
8
SPI Control Register
Clock
Logic
MUX
LSB
Clock
2:1
8
Parallel Slave
Serial Slave
(Read Buffer)
D
CLK
D
CLK
LATCH
LATCH
S
M
M
S
S
M
Q
Q
3538E–MICRO–11/10
8
Serial Out
Receive
Byte
MISO
MOSI
P1.6
P1.5
SCK
P1.4
1.7
SS