Figure 16. ICC Test Condition, Power-down Mode
參數(shù)資料
型號(hào): AT87C52X2-SLSUL
廠商: Atmel
文件頁數(shù): 35/55頁
文件大小: 0K
描述: IC 8051 MCU 8K OTP 30MHZ 44PLCC
標(biāo)準(zhǔn)包裝: 972
系列: 87C
核心處理器: 8051
芯體尺寸: 8-位
速度: 30/20MHz
連通性: UART/USART
外圍設(shè)備: POR
輸入/輸出數(shù): 32
程序存儲(chǔ)器容量: 8KB(8K x 8)
程序存儲(chǔ)器類型: OTP
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 2.7 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
40
TS8xCx2X2
4184I–8051–02/08
Figure 16. ICC Test Condition, Power-down Mode
Figure 17. Clock Signal Waveform for ICC Tests in Active and Idle Modes
AC Parameters
Explanation of the AC
Symbols
Each timing symbol has 5 characters. The first character is always a “T” (stands for
time). The other characters, depending on their positions, stand for the name of a signal
or the logical status of that signal. The following is a list of all the characters and what
they stand for.
Example:TAVLL = Time for Address Valid to ALE Low.
TLLPL = Time for ALE Low to PSEN Low.
TA = 0 to +70°C (commercial temperature range); VSS = 0 V; VCC = 5V ± 10%; -M and -V
ranges.
TA = -40°C to +85°C (industrial temperature range); VSS = 0 V; VCC = 5V ± 10%; -M and
-V ranges.
TA = 0 to +70°C (commercial temperature range); VSS = 0 V; 2.7 V < VCC < 5.5V; -L
range.
TA = -40°C to +85°C (industrial temperature range); VSS = 0 V; 2.7 V < VCC < 5.5V; -L
range.
Table 24. gives the maximum applicable load capacitance for Port 0, Port 1, 2 and 3,
and ALE and PSEN signals. Timings will be guaranteed if these capacitances are
respected. Higher capacitance values can be used, but timings will then be degraded.
Table 24. Load Capacitance versus speed range, in pF
Table 5., Table 29. and Table 32. give the description of each AC symbols.
Table 27., Table 30. and Table 33. give for each range the AC parameter.
RST
EA
XTAL2
XTAL1
VSS
VCC
ICC
(NC)
P0
VCC
All other pins are disconnected.
Reset = Vss after a high pulse
during at least 24 clock cycles
VCC-0.5V
0.45V
0.7VCC
0.2VCC-0.1
TCLCH
TCHCL
TCLCH = TCHCL = 5ns.
-M
-V
-L
Port 0
100
50
100
Port 1, 2, 3
80
50
80
ALE / PSEN
100
30
100
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