參數(shù)資料
型號(hào): AT89LS51-16PU
廠商: Atmel
文件頁(yè)數(shù): 8/31頁(yè)
文件大小: 0K
描述: IC MCU 4K FLASH 16MHZ 40-DIP
產(chǎn)品培訓(xùn)模塊: MCU Product Line Introduction
標(biāo)準(zhǔn)包裝: 10
系列: 89LS
核心處理器: 8051
芯體尺寸: 8-位
速度: 16MHz
連通性: UART/USART
外圍設(shè)備: WDT
輸入/輸出數(shù): 32
程序存儲(chǔ)器容量: 4KB(4K x 8)
程序存儲(chǔ)器類型: 閃存
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 4 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 40-DIP(0.600",15.24mm)
包裝: 管件
16
3053C–MICRO–6/08
AT89LS51
5.
At the end of a programming session, RST can be set low to commence normal device
operation.
Power-off sequence (if needed):
1.
Set XTAL1 to “L” (if a crystal is not used).
2.
Set RST to “L”.
3.
Turn V
CC power off.
Data Polling: The Data Polling feature is also available in the serial mode. In this mode, during
a write cycle an attempted read of the last byte written will result in the complement of the MSB
of the serial output byte on MISO.
16.2
Serial Programming Instruction Set
The Instruction Set for Serial Programming follows a 4-byte protocol and is shown in Table 19-1.
17. Programming Interface – Parallel Mode
Every code byte in the Flash array can be programmed by using the appropriate combination of
control signals. The write operation cycle is self-timed and once initiated, will automatically time
itself to completion.
Most major worldwide programming vendors offer support for the Atmel microcontroller series.
Please contact your local programming vendor for the appropriate software revision.
Notes:
1. Each PROG pulse is 200 ns - 500 ns for Chip Erase.
2. Each PROG pulse is 200 ns - 500 ns for Write Code Data.
3. Each PROG pulse is 200 ns - 500 ns for Write Lock Bits.
4. RDY/BSY signal is output on P3.0 during programming.
5. X = don’t care.
Table 17-1.
Flash Programming Modes
Mode
V
CC
RST
PSEN
ALE/
PROG
EA/
V
PP
P2.6
P2.7
P3.3
P3.6
P3.7
P0.7-0
Data
P2.3-0
P1.7-0
Address
Write Code Data
5V
H
L
12V
L
HHHH
D
IN
A11-8
A7-0
Read Code Data
5V
H
L
H
L
H
D
OUT
A11-8
A7-0
Write Lock Bit 1
5V
H
L
12V
HHHHH
X
Write Lock Bit 2
5V
H
L
12V
H
L
X
Write Lock Bit 3
5V
H
L
12V
H
L
H
L
X
Read Lock Bits
1, 2, 3
5V
H
L
H
L
H
L
P0.2,
P0.3,
P0.4
XX
Chip Erase
5V
H
L
12V
HLHL
L
X
Read Atmel ID
5V
H
L
H
LLLLL
1EH
0000
00H
Read Device ID
5V
H
L
H
LLLLL
61H
0001
00H
Read Device ID
5V
H
L
H
LLLLL
06H
0010
00H
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