M27C256B-90B1 STMicroelectronics, M27C256B-90B1 Datasheet - Page 4
M27C256B-90B1
Manufacturer Part Number
M27C256B-90B1
Description
IC OTP 256KBIT 90NS 28DIP
Manufacturer
STMicroelectronics
Datasheet
1.M27C256B-15F1.pdf
(24 pages)
Specifications of M27C256B-90B1
Format - Memory
EPROMs
Memory Type
OTP EPROM
Memory Size
256K (32K x 8)
Speed
90ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Package / Case
28-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-1653-5
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
List of figures
List of figures
Figure 1.
Figure 2.
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Figure 6.
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Figure 10.
Figure 11.
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Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
DIP connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
LCC connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Programming flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
AC testing input output waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
AC testing load circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Read mode AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Programming and Verify modes AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
FDIP28WB - 28 pin Ceramic Frit-seal DIP, with window, package outline . . . . . . . . . . . . . 19
PDIP28 - 28 pin Plastic DIP, 600 mils width, package outline . . . . . . . . . . . . . . . . . . . . . . 20
PLCC32 - 32 pin Rectangular Plastic Leaded Chip Carrier, package outline. . . . . . . . . . . 21
M27C256B