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A28F400BX-T Datasheet, PDF (25/34 Pages) Intel Corporation – 4-MBIT 256K x16, 512K x8 BOOT BLOCK FLASH MEMORY FAMILY
A28F400BX-T B
DC CHARACTERISTICS (Continued)
Symbol
Parameter
Notes Min Typ Max Unit
Test Condition
VOH
Output High Voltage
24
V VCC e VCC Min
IOH e b2 5 mA
VPPL
VPP during Normal Operations
3 00
65 V
VPPH VPP during Erase Write Operations 7 11 4 12 0 12 6 V
VLKO VCC Erase Write Lock Voltage
20
V
VHH
RP Unlock Voltage
11 5
13 0 V Boot Block Write Erase
CAPACITANCE(4) TA e 25 C f e 1 MHz
Symbol
Parameter
Typ
Max
Unit
Condition
CIN
COUT
Input Capacitance
6
8
pF
VIN e 0V
Output Capacitance
10
12
pF
VOUT e 0V
NOTES
1 All currents are in RMS unless otherwise noted Typical values at VCC e 5 0V VPP e 12 0V T e 25 C These currents
are valid for all product versions (packages and speeds)
2 ICCES is specified with the device deselected If the device is read while in Erase Suspend Mode current draw is the sum
of ICCES and ICCR
3 Block Erases and Word Byte Writes are inhibited when VPP e VPPL and not guaranteed in the range between VPPH and
VPPL
4 Sampled not 100% tested
5 Automatic Power Savings (APS) reduces ICCR to less than 1 mA typical in static operation
6 CMOS Inputs are either VCC g0 2V or GND g0 2V TTL Inputs are either VIL or VIH
7 VPP e 12 0V g 5% for applications requiring 1 000 block erase cycles
STANDARD TEST CONFIGURATION
STANDARD
AC INPUT OUTPUT REFERENCE WAVEFORM
STANDARD
AC TESTING LOAD CIRCUIT
290501 – 12
AC test inputs are driven at VOH (2 4 VTTL) for a Logic ‘‘1’’ and VOL
(0 45 VTTL) for a logic ‘‘0’’ Input timing begins at VIH (2 0 VTTL) and VIL
(0 8 VTTL) Output timing ends at VIH and VIL Input rise and fall times (10%
to 90%) k 10 ns
290501 – 13
CL e 100 pF
CL Includes Jig Capacitance
RL e 3 3 KX
25