AT89LP428-20PU Atmel, AT89LP428-20PU Datasheet - Page 136
AT89LP428-20PU
Manufacturer Part Number
AT89LP428-20PU
Description
MCU 8051 4K FLASH SPI 28PDIP
Manufacturer
Atmel
Series
89LPr
Datasheet
1.AT89LP428-20AU.pdf
(149 pages)
Specifications of AT89LP428-20PU
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
30
Program Memory Size
4KB (4K x 8)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
2.4 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-DIP (0.300", 7.62mm)
Processor Series
AT89x
Core
8051
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
AT89ISP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
Lead Free Status / Rohs Status
Details
- Current page: 136 of 149
- Download datasheet (5Mb)
24.8
The values in this table are valid for V
Figure 24-15. Shift Register Mode Timing Waveform
24.9
24.9.1
Note:
24.9.2
Note:
136
Symbol
t
t
t
t
t
XLXL
QVXH
XHQX
XHDX
XHDV
Serial Port Timing: Shift Register Mode
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
AT89LP428/828
AC Testing Input/Output Waveform
Float Waveform
Write to SBUF
V
float when 100 mV change from the loaded V
Output Data
Input Data
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
Clear RI
min. for a logic “1” and V
Clock
(1)
Valid
0
IL
CC
max. for a logic “0”.
= 2.4V to 5.5V and Load Capacitance = 80 pF.
Valid
1
CC
(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.
Valid
3
Valid
4
2t
t
t
Valid
CLCL
CLCL
CLCL
Min
5
15
Variable Oscillator
0
-15
-15
-15
Valid
6
Max
Valid
7
3654A–MICRO–8/09
Units
µs
ns
ns
ns
ns
Related parts for AT89LP428-20PU
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
Part Number:
Description:
8-bit Microcontroller with 4K/8K Bytes In-System Programmable Flash
Manufacturer:
ATMEL [ATMEL Corporation]
Datasheet:
Part Number:
Description:
MCU 8051 4K FLASH SPI 32TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU 8051 4K FLASH SPI 32PLCC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU 8051 4K FLASH SPI 32VQFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
8-bit Microcontroller With 4k/8k Bytes In-system Programmable Flash
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
DEV KIT FOR AVR/AVR32
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet: