参数资料
型号: TS80C31X2-LCC
厂商: Atmel
文件页数: 25/42页
文件大小: 0K
描述: IC MCU 8BIT 30/20MHZ 44-PQFP
标准包装: 9
系列: 80C
核心处理器: 8051
芯体尺寸: 8-位
速度: 30/20MHz
连通性: UART/USART
外围设备: POR
输入/输出数: 32
程序存储器类型: ROMless
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 5.5 V
振荡器型: 内部
工作温度: 0°C ~ 70°C
封装/外壳: 44-QFP
包装: 托盘
31
4428E–8051–02/08
AT/TS80C31X2
Table 14-7., Table 14-10. and Table 14-13. give the frequency derating formula of the AC
parameter. To calculate each AC symbols, take the x value corresponding to the speed grade
you need (-M, -V or -L) and replace this value in the formula. Values of the frequency must be
limited to the corresponding speed grade:
Table 14-4.
Max frequency for derating formula regarding the speed grade
Example:
TLLIV in X2 mode for a -V part at 20 MHz (T = 1/20
E6 = 50 ns):
T= 50ns
TLLIV= 2T - x = 2 x 50 - 25 = 75ns
Table 14-5.
External Program Memory Characteristics
-M X1 mode -M X2 mode -V X1 mode -V X2 mode -L X1 mode -L X2 mode
Freq (MHz)
40
20
40
30
20
T (ns)
25
50
25
33.3
50
Symbol
Parameter
T
Oscillator clock period
T
LHLL
ALE pulse width
T
AVLL
Address Valid to ALE
T
LLAX
Address Hold After ALE
T
LLIV
ALE to Valid Instruction In
T
LLPL
ALE to PSEN
T
PLPH
PSEN Pulse Width
T
PLIV
PSEN to Valid Instruction In
T
PXIX
Input Instruction Hold After PSEN
T
PXIZ
Input Instruction FloatAfter PSEN
T
PXAV
PSEN to Address Valid
T
AVIV
Address to Valid Instruction In
T
PLAZ
PSEN Low to Address Float
相关PDF资料
PDF描述
TS80C31X2-VCC IC MCU 8BIT 40/30MHZ 44-PQFP
223041-2 CONN SHROUD 60POS VERT 2MM
201298-1 CONN HOUSING RECEPT 14POS BLACK
5172070-1 CONN RECEPT 8 POS BLUE PANEL MT
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