AM29F400B AMD [Advanced Micro Devices], AM29F400B Datasheet - Page 34

• Manufacturer Part Number: AM29F400B
• Description: 4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory
• Manufacturer: AMD [Advanced Micro Devices]

ERASE AND PROGRAMMING PERFORMANCE
Notes:
1. Typical program and erase times assume the following conditions: 25 C, 5.0 V V
2. Under worst case conditions of 90°C, V
3. The typical chip programming time is considerably less than the maximum chip programming time listed, since most bytes
4. In the pre-programming step of the Embedded Erase algorithm, all bytes are programmed to 00h before erasure.
5. System-level overhead is the time required to execute the four-bus-cycle sequence for the program command. See Table 5
6. The device has a guaranteed minimum erase and program cycle endurance of 1,000,000 cycles.
LATCHUP CHARACTERISTICS
Includes all pins except V
TSOP AND SO PIN CAPACITANCE
Notes:
1. Sampled, not 100% tested.
2. Test conditions T
DATA RETENTION
34
Parameter
Sector Erase Time
Chip Erase Time
Byte Programming Time
Word Programming Time
Chip Programming Time
(Note 3)
Input voltage with respect to V
(including A9, OE#, and RESET#)
Input voltage with respect to V
V
Parameter
Minimum Pattern Data Retention Time
CC
programming typicals assume checkerboard pattern.
program faster than the maximum program times listed.
for further information on command definitions.
Parameter
Current
Symbol
C
C
C
OUT
IN2
IN
A
= 25°C, f = 1.0 MHz.
CC
. Test conditions: V
Description
Word Mode
Byte Mode
Control Pin Capacitance
Parameter Description
SS
SS
Output Capacitance
Input Capacitance
on all pins except I/O pins
on all I/O pins
CC
Typ (Note 1)
= 4.5 V (4.75 V for -60), 1,000,000 cycles.
CC
1.0
3.6
3.1
11
12
7
= 5.0 V, one pin at a time.
P R E L I M I N A R Y
Am29F400B
Max (Note 2)
10.8
300
500
9.3
8
Test Conditions
150 C
125 C
Test Setup
V
V
V
OUT
IN
IN
–100 mA
–1.0 V
–1.0 V
= 0
= 0
Min
= 0
CC
Unit
µs
µs
s
s
s
s
, 1,000,000 cycles. Additionally,
Excludes 00h programming
prior to erasure
Excludes system level
overhead (Note 5)
Min
10
20
Typ
8.5
7.5
6
Comments
V
CC
+100 mA
12.5 V
Max
Max
+ 1.0 V
7.5
12
9
Years
Years
Unit
Unit
pF
pF
pF