參數(shù)資料
型號(hào): AT80251G2D-SLRUM
廠商: Atmel
文件頁(yè)數(shù): 39/77頁(yè)
文件大?。?/td> 0K
描述: IC 8051 MCU ROMLESS 44PLCC
標(biāo)準(zhǔn)包裝: 500
系列: 8x251
核心處理器: C251
芯體尺寸: 8/16-位
速度: 24MHz
連通性: EBI/EMI,I²C,Microwire,SPI,UART/USART
外圍設(shè)備: POR,PWM,WDT
輸入/輸出數(shù): 32
程序存儲(chǔ)器類型: ROMless
RAM 容量: 1K x 8
電壓 - 電源 (Vcc/Vdd): 4.5 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-LCC(J 形引線)
包裝: 帶卷 (TR)
44
AT/TSC8x251G2D
4135F–8051–11/06
Then device is driving the data on Port 2.
It is possible to alternate programming and verification operation (see Paragraph
Programming Algorithm). Please make sure the voltage on the EA# pin has actually
been lowered to VDD before performing the verifying operation.
PSEN# and the other control signals have to be released to complete a sequence of
verifying operations or a sequence of programming and verifying operations.
Table 37.
Verifying Modes
Notes: 1. To preserve the secrecy of on-chip code memory when encrypted, the Encryption
Array can not be verified.
Figure 7.
Setup for Verifying
ROM Area
(1)
RST
EA#/VPP PSEN# ALE/PROG#
P0
P2
P1(MSB) P3(LSB)
On-chip code
memory
1
0
1
28h
Data
16-bit Address
0000h-7FFFh (32
kilobytes)
Configuration Bytes
1
0
1
29h
Data
CONFIG0: FFF8h
CONFIG1: FFF9h
Lock Bits
1
0
1
2Bh
Data 0000h
Signature Bytes
1
0
1
29h
Data
0030h, 0031h, 0060h,
0061h
VDD
PSEN#
ALE/PROG#
EA#/VPP
XTAL1
VDD
4 to 12 MHz
RST
VSS/VSS1/VSS2
Mode
VDD
A[7:0]
A[14:8]
P0[7:0]
P3[7:0]
P1[7:0]
TSC8x251G2D
P2[7:0]
Data
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