ADMC341 Просмотр технического описания (PDF) - Analog Devices
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ADMC341 Datasheet PDF : 36 Pages
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ADMC(F)341
FLASH MEMORY (ADMCF341 ONLY)
Parameter
Endurance
Data Retention
Program and Erase Operating Temperature
Read Operating Temperature
Specifications subject to change without notice.
Min Typ Max
10,000
15
0
85
–40
+85
TIMING PARAMETERS
Parameter
Clock Signals
Signal tCK is defined as 0.5 tCKIN. The ADMC(F)341 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
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.
Unit Conditions/Comments
Cycles
Years
°C
°C
Cycle = Erase/Program/Verify
Min
Max
Unit
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. A
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