AT27BV256-70JU Atmel, AT27BV256-70JU Datasheet - Page 6

• Manufacturer Part Number: AT27BV256-70JU
• Description: IC OTP 256KBIT 70NS 32PLCC
• Manufacturer: Atmel

Specifications of AT27BV256-70JU

• Format - Memory: EPROMs
• Memory Type: OTP EPROM
• Memory Size: 256K (32K x 8)
• Speed: 70ns
• Interface: Parallel
• Voltage - Supply: 2.7 V ~ 3.6 V, 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-PLCC
• Organization: 32 K x 8
• Access Time: 70 ns
• Supply Voltage (max): 3.6 V or 5.5 V
• Supply Voltage (min): 2.7 V or 4.5 V
• Maximum Operating Temperature: 85 C
• Interface Type: Parallel
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

9. AC Characteristics for Read Operation
V
10. AC Waveforms for Read Operation
Notes:
6
Symbol
t
t
t
t
t
CC
ACC
CE
OE
DF
OH
(2)
(4)(5)
(2)(3)
= 2.7V to 3.6V and 4.5V to 5.5V
(3)
1. Timing measurement references are 0.8V and 2.0V. Input AC drive levels are 0.45V and 2.4V, unless otherwise specified.
2. OE may be delayed up to t
3. OE may be delayed up to t
4. This parameter is only sampled and is not 100% tested.
5. Output float is defined as the point when data is no longer driven.
6. When reading a AT27BV256, a 0.1 µF capacitor is required across V
AT27BV256
Parameter
Address to Output Delay
CE to Output Delay
OE to Output Delay
OE or CE High to Output Float,
Whichever Occurred First
Output Hold from Address, CE or OE,
Whichever Occurred First
CE
ACC
- t
- t
OE
OE
after the falling edge of CE without impact on t
after the address is valid without impact on t
(1)
Condition
CE = OE = V
OE = V
CE = V
CC
IL
IL
and ground to suppress spurious voltage transients.
IL
ACC
CE
.
.
Min
AT27BV256-70
0
Max
70
70
50
40
0601E–EPROM–12/07
Units
ns
ns
ns
ns
ns