ATF2500C-20PI Atmel, ATF2500C-20PI Datasheet - Page 4

• Manufacturer Part Number: ATF2500C-20PI
• Description: IC CPLD EE 20NS 40DIP
• Manufacturer: Atmel
• Series: ATF2500C(L)r

Specifications of ATF2500C-20PI

• Programmable Type: In System Programmable
• Delay Time Tpd(1) Max: 20.0ns
• Voltage Supply - Internal: 4.5 V ~ 5.5 V
• Number Of Macrocells: 24
• Number Of I /o: 24
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: 40-DIP (0.600", 15.24mm)
• Voltage: 5V
• Memory Type: EEPROM
• Family Name: ATF2500C
• # Macrocells: 24
• Number Of Usable Gates: 2500
• Frequency (max): 71MHz
• Propagation Delay Time: 20ns
• # I/os (max): 24
• Operating Supply Voltage (typ): 5V
• In System Programmable: No
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Through Hole
• Pin Count: 40
• Package Type: PDIP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Number Of Logic Elements/cells: -
• Lead Free Status / Rohs Status: Not Compliant

4. Power-up Reset
4
ATF2500C
The registers in the ATF2500Cs are designed to reset during power-up. At a point delayed
slightly from V
depend on the polarity of the output buffer.
This feature is critical for state as nature of reset and the uncertainty of how V
the system, the following conditions are required:
Figure 4-1.
Table 4-1.
Parameter
t
V
1. The V
2. After reset occurs, all input and feedback setup times must be met before driving the
3. The clock pin, and any signals from which clock terms are derived, must remain stable
PR
RST
clock pin or terms high, and
during t
CC
PR
CC
rise must be monotonic,
Power-up Reset Waveform
Power-up Reset
.
Description
Power-up Reset Time
Power-up Reset Voltage
crossing V
RST
, all registers will be reset to the low state. The output state will
Typ
600
3.8
1000
Max
4.5
CC
actually rises in
0777K–PLD–1/24/08
Units
ns
V