atf16v8c ATMEL Corporation, atf16v8c Datasheet - Page 5

• Manufacturer Part Number: atf16v8c
• Description: High- Performance Ee Pld
• Manufacturer: ATMEL Corporation

Input Test Waveforms and
Measurement Levels:
t
Pin Capacitance
f = 1 MHz, T = 25 C
Note:
Power-up Reset
The ATF16V8C’s registers are designed to reset during
power-up. At a point delayed slightly from V
V
the registered output state will always be high on power-up.
This feature is critical for state machine initialization.
However, due to the asynchronous nature of reset and the
uncertainty of how V
following conditions are required:
1. The V
2. After reset occurs, all input and feedback setup
3. The signals from which the clock is derived must
R
C
C
RST
, t
IN
OUT
F
times must be met before driving the clock term
high, and
remain stable during t
, all registers will be reset to the low state. As a result,
< 1.5 ns (10% to 90%)
1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.
CC
rise must be monotonic, from below 0.7V,
CC
(1)
actually rises in the system, the
PR
.
Typ
5
6
CC
crossing
Max
8
8
Output Test Loads:
Parameter
t
V
PR
RST
R1 = 200
R2 = 200
Description
Power-up
Reset Time
Power-up
Reset Voltage
Units
pF
pF
5.0V
ATF16V8C
OUTPUT
PIN
CL = 50 pF
Typ
600
3.8
Conditions
V
V
IN
OUT
= 0V
= 0V
Max
1,000
4.5
Units
ns
V
5