AT89LP2052-20PU Atmel, AT89LP2052-20PU Datasheet - Page 83

• Manufacturer Part Number: AT89LP2052-20PU
• Description: IC 8051 MCU FLASH 2K 20DIP
• Manufacturer: Atmel
• Series: 89LPr

Specifications of AT89LP2052-20PU

• 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: 15
• Program Memory Size: 2KB (2K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-DIP (0.300", 7.62mm)
• Processor Series: AT89x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: SPI/UART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 15
• Number Of Timers: 2
• Operating Supply Voltage: 2.4 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: AT89ISP
• Minimum Operating Temperature: - 40 C
• Package: 20PDIP
• Device Core: 8051
• Family Name: AT89
• Maximum Speed: 20 MHz
• Cpu Family: AT89
• Device Core Size: 8b
• Frequency (max): 20MHz
• Total Internal Ram Size: 256Byte
• # I/os (max): 15
• Number Of Timers - General Purpose: 2
• Operating Supply Voltage (typ): 2.5/3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.4V
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Through Hole
• Pin Count: 20
• Package Type: PDIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

24.5
Table 24-4.
Note:
Figure 24-6. Shift Register Mode Timing Waveforms
24.6
24.6.1
Note:
24.6.2
Note:
3547J–MICRO–10/09
Symbol
t
t
t
t
t
XLXL
QVXH
XHQX
XHDX
XHDV
Serial Port Timing: Shift Register Mode
1. The values in this table are valid for V
Test Conditions
1. AC Inputs during testing are driven at V
1. For timing purposes, a port pin is no longer floating when a 100 mV change from load voltage occurs. A port pin begins to
WRITE TO SBUF
OUTPUT DATA
AC Testing Input/Output Waveforms
Float Waveforms
INPUT DATA
V
float when 100 mV change from the loaded V
CLEAR RI
Parameter
Serial Port Clock Cycle Time
Output Data Setup to Clock Rising Edge
Output Data Hold after Clock Rising Edge
Input Data Hold after Clock Rising Edge
Input Data Valid to Clock Rising Edge
IH
min. for a logic “1” and V
Serial Port Shift Register Timing Parameters
CLOCK
(1)
VALID
0
IL
max. for a logic “0”.
VALID
CC
1
CC
= 2.4V to 5.5V and Load Capacitance = 80 pF.
(1)
- 0.5V for a logic “1” and 0.45V for a logic “0”. Timing measurements are made at
OH
VALID
/V
OL
2
level occurs.
(1)
VALID
3
VALID
4
AT89LP2052/LP4052
2t
VALID
t
t
CLCL
CLCL
CLCL
Min
5
15
Variable Oscillator
0
-15
-15
-15
VALID
6
Max
VALID
7
Units
µs
ns
ns
ns
ns
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