ADMCF341(Rev0) データシートの表示（PDF） - Analog Devices
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ADMCF341
(Rev.:Rev0)
(Rev.:Rev0)
Analog Devices
ADMCF341 Datasheet PDF : 36 Pages
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ADMCF341
SPECIFICATIONS (continued)
FLASH MEMORY
Parameter
Endurance
Data Retention
Program and Erase Operating Temperature
Read Operating Temperature
Specifications subject to change without notice.
Min Typ
10,000
15
0
–40
Max Unit Conditions/Comments
Cycles Cycle = Erase/Program/Verify
Years
85
∞C
+85 ∞C
TIMING PARAMETERS
Parameter
Min
Clock Signals
Signal tCK is defined as 0.5 tCKIN. The ADMCF341 uses an input clock with
a frequency equal to half the instruction rate; a 10 MHz input clock (which is
equivalent to 100 ns) yields a 50 ns processor cycle (equivalent to 20 MHz).
When tCK values are within the range of 0.5 tCKIN period, they should be
substituted for all relevant timing parameters to obtain specification value as
in the following example:
tCKH = 0.5 tCK - 10 ns = 0.5 ¥ 50 ns - 10 ns = 15 ns
Max
Unit
Timing Requirements:
tCKIN
CLKIN Period
tCKIL
CLKIN Width Low
tCKIH
CLKIN Width High
Switching Characteristics:
tCKL
tCKH
tCKOH
CLKOUT Width Low
CLKOUT Width High
CLKIN High to CLKOUT High
Control Signals
Switching Characteristics
tRSP
RESET Width Low
PWM Shutdown Signals
Switching Characteristics
tPWMTPW PWMTRIP Width Low
*Applies after power-up sequence is complete.
Specifications subject to change without notice.
100
150
ns
20
ns
20
ns
0.5 tCK – 10
ns
0.5 tCK – 10
ns
0
20
ns
5 tCK*
ns
tCK
ns
CLKIN
CLKOUT
tCKIN
tCKIH
tCKIL
tCKOH
tCKH
tCKL
Figure 1. Clock Signals
–4–
REV. 0
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