參數(shù)資料
型號: AT80251G2D-SLSUM
廠商: Atmel
文件頁數(shù): 54/77頁
文件大小: 0K
描述: IC 8051 MCU ROMLESS 44PLCC
標(biāo)準(zhǔn)包裝: 972
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: 管件
58
AT/TSC8x251G2D
4135F–8051–11/06
Figure 21.
SPI Slave Waveforms (SSCPHA = 0)
Note:
1. Not Defined but generally the LSB of the character which has just been received.
Figure 22.
SPI Slave Waveforms (SSCPHA = 1)
AC Characteristics - EPROM Programming and Verifying
Definition of Symbols
Table 50.
EPROM Programming and Verifying Timing Symbol Definitions
TSLCL
TSLCH
T
CHCL
TCLCH
MOSI
(input)
SCK
(SSCPOL = 0)
(input)
SS#
(input)
SCK
(SSCPOL = 1)
(input)
MISO
(output)
TCHCH
TCLCX
TCHCX
TIVCL TCLIX
TCHIX
TIVCH
TCHOV
TCLOV
TCHOX
TCLOX
MSB IN
BIT 6
LSB IN
SLAVE MSB OUT
SLAVE LSB OUT
BIT 6
TSLOV
(1)
TSHOX
TSHSL
TCHSH
TCLSH
TCHCL
TCLCH
MOSI
(input)
SCK
(SSCPOL = 0)
(input)
SS#
(input)
SCK
(SSCPOL = 1)
(input)
MISO
(output)
TCHCH
TCLCX
TCHCX
TIVCL TCLIX
TCHIX
TIVCH
TCLOV
TCHOV
TCLOX
TCHOX
MSB IN
BIT 6
LSB IN
SLAVE MSB OUT
SLAVE LSB OUT
BIT 6
TSLOV
(1)
TSHOX
TSHSL
TCHSH
TCLSH
TSLCL
TSLCH
Signals
Conditions
A
Address
H
High
E
Enable: mode set on Port 0
L
Low
G
Program
V
Valid
Q
Data Out
X
No Longer Valid
S
Supply (VPP)
Z
Floating
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