AS27C256-55J Ver la hoja de datos (PDF) - Austin Semiconductor
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AS27C256-55J Datasheet PDF : 13 Pages
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Austin Semiconductor, Inc.
UVEPROM
AS27C256
RECOMMENDED TIMING REQUIREMENTS FOR PROGRAMMING: VCC = 6.5 and VPP =
12.75V (AMD FLASHRITE ALGO), TA = 25°C (See Figure 2)
th(A)
th(D)
tw(E)PR
tsu(A)
tsu(G)
tsu(E)
tsu(D)
tsu(VPP)
tsu(VCC)
Hold Time, Address
Hold Time, Data
Pulse Duration, Initial Program
Setup Time, Address
Setup Time, G\
Setup Time, E\
Setup Time, Data
Setup Time, VPP
Setup Time, VCC
MIN
TYP
MAX UNIT
0
µs
2
µs
95
100
105
µs
2
µs
2
µs
2
µs
2
µs
2
µs
2
µs
PARAMETER MEASUREMENT INFORMATION
2.08V
Output Under Test
CL = 100 pF1
RL = 800Ω
NOTES:
1. CL includes probe and fixture capacitance.
The AC testing inputs are driven at 2.4V for logic high and 0.4V for logic low. Timing measurements are made
at 2V for logic high and 0.8V for logic low for both inputs and outputs.
FIGURE 2. LOAD CIRCUIT AND VOLTAGE WAVEFORMS
AS27C256
Rev. 2.0 7/06
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
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