MSM65354 Datasheet, PDF (14/20 Pages) OKI electronic componets – 8-Bit Microcontroller with A/D Converter (with LCD Driver)

¡ Semiconductor
AC Characteristics
• CPU control
Parameter
RESET Pulse Width
Symbol
t_RESW
MSM65354/65353A
Condition
—
(V_DD = 2.7 to 5.5V, GND = 0V, Ta = –20 to +70˚C)
Min.
Max.
Unit
20
—
ns
• Peripheral control 1
Parameter
Symbol
Condition
(V_DD = 2.7 to 5.5V, GND = 0V, Ta = –20 to +70˚C)
Min.
Max.
Unit
Clock Cycle
t_C
V_DD = 4.5 to 5.5V
100
—
OSC
2.7V £ V_DD < 4.5V
200
—
Clock "L" Pulse Width t_CLW
—
0.45t_C
0.55t_C
External Interrupt
EXI _{Pulse Width}
t_EXIW
4CPUCLK ^*1
—
ns
External Clock Pulse
—
T0 Width
t_T0CW
GATE Pulse Width t_T0GW
4CPUCLK ^*1
—
4 t_T0CLK ^*2
—
*1 CPUCLK : Supply clock to the CPU selected by SBYCON.
*2 t_T0CLK : Cycle time of timer 0 count clock selected by T0CON.
• Peripheral control 2
Parameter
Symbol
OSC Clock Cycle
t_C
SFTCK Cycle
t_{SFC0, 1}
SFTCK "L" Pulse Width t_{SFCLW0, 1}
SFTCK "H" Pulse Width t_{SFCHW0, 1}
SFT0, 1 _{SFTO Setup Time}
t_{SFOS0, 1}
SFTO Hold Time
t_{SFOH0, 1}
SFTI Setup Time
t_{SFIS0, 1}
SFTI Hold Time
t_{SFIH0, 1}
Condition
V_DD = 4.5 to 5.5V
2.7V £ V_DD < 4.5V
C_L = 100 pF
(V_DD = 2.7 to 5.5V, GND = 0V, Ta = –20 to +70˚C)
MIN
MAX
Unit
100
—
200
—
8CPUCLK ^*1
—
4CPUCLK –20 ^*1
—
4CPUCLK –20 ^*1
—
ns
tSFCLW0, ₁ –100
—
tSFCHW0, ₁ –100
—
100
—
100
—
*1 CPUCLK : Supply clock to the CPU selected by SBYCON.
See Timing Diagram.
14/20