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EN27C512 Schematic ( PDF Datasheet ) - EON

Teilenummer EN27C512
Beschreibung 512KBIT EPROM
Hersteller EON
Logo EON Logo 




Gesamt 12 Seiten
EN27C512 Datasheet, Funktion
www.DataSheet4U.com
EN27C512 512KBIT EPROM (64K x 8)
EN27C512
FEATURES
Fast Read Access Time:
-45, -55, -70, and -90ns
Single 5V Power Supply
Programming Voltage +12.75V
QuikRiteTM Programming Algorithm
Typical programming time 20µs
Low Power CMOS Operation
1µA Standby (Typical)
30mA Operation (Max.)
CMOS- and TTL-Compatible I/O
High-Reliability CMOS Technology
Latch-Up Immunity to 100mA
from -1V to VCC + 1V
Two-Line Control ( OE & CE )
Standard Product Identification Code
JEDEC Standard Pinout
28-pin PDIP
32-pin PLCC
28-pin TSOP (Type 1)
Commercial and Industrial Temperature
Ranges
GENERAL DESCRIPTION
The EN27C512 is a low-power 512Kbit, 5V-only one-time-programmable (OTP) read-only
memory (EPROM). Organized into 64K words with 8 bits per word, it features QuikRiteTM single-
address location programming, typically at 20µs per byte. Any byte can be accessed in less than
45ns, eliminating the need for WAIT states in high-performance microprocessor systems. The
EN27C512 has separate Output Enable ( OE ) and Chip Enable ( CE ) controls which eliminate
bus contention issues.
FIGURE 1. PDIP
Pin Name
A0-A15
DQ0-DQ7
CE
OE
NC
Function
Addresses
Outputs
Chip Enable
Output Enable
No Connect
4800 Great America Parkway Ste 202
Santa Clara, CA. 95054
1
Tel: 408-235-8680
Fax: 408-235-8685






EN27C512 Datasheet, Funktion
EN27C512
MODE SELECT TAB
Mode
Read
Output Disable
Standby (TTL)
Standby (CMOS)
Program (4)
Program Verify
Program Inhibit
Manufacturer Code (3)
Device Code (3)
CE
VIL
VIL
VIH
VCC ± 0.3V
VIL
VIL
VIH
VIL
VIL
OE /VPP
VIL
VIH
X
X
VPP
VIL
Vp p
VIL
VIL
A0
X
X
X
X
X
X
X
VIL
VIH
A9
X
X
X
X
X
X
X
VH(1)
VH(1)
Output
DOUT
High Z
High Z
High Z
DIN
DOUT
High Z
1C
83
NOTES:
1) VH = 12.0V ± 0.5V
2) X = Either VIH or VIL
3) For Manufacturer Code and Device Code, A1 = VIH
When A1 = VIL, both codes will read 7F
4) See DC Programming Characteristics for V PP voltage during programming
EON’S STANDARD PRODUCT IDENTIFICATION CODE
Code
Manufacturer
Device Type
Continuation
Pins
A0 A1 DQ7 DQ6 DQ5 DQ4 DQ3 DQ2 DQ1 DQ0
010001110 0
111000001 1
000111111 1
100111111 1
Hex
Data
1C
83
7F
7F
4800 Great America Parkway Ste 202
Santa Clara, CA. 95054
6
Tel: 408-235-8680
Fax: 408-235-8685

6 Page









EN27C512 pdf, datenblatt
SWITCHING PROGRAMMING CHARACTERISTICS
(TA = + 25° C ± 5°C)
PARAMETER
SYMBOL
STANDARD
tAS
tOES
tOEH
tDS
tAH
tDH
tDFP
tPW
tVCS
tDV
tVR
PARAMETER DESCRIPTION
Address Setup Time
OE /VPP Setup Time
OE /VPP Hold Time
Data Setup Time
Address Hold Time
Data Hold Time
Output Enable to Output Float Delay
PGM Program Pulse Width
Vcc Setup Time
Data Valid from CE
OE /VPP Hold Time
Min.
2
2
2
2
0
2
0
20
2
2
EN27C512
Max Units
µs
µs
µs
µs
µs
µs
130 ns
105 µs
µs
150 ns
µs
ORDERING INFORMATION
EN27C512 45 P
I
TEMPERATURE RANGE
(Blank) = Commercial ( 0àC to +70àC)
I = Industrial ( -40àC to +85àC)
PACKAGE
P = 28 Plastic DIP
J = 32 Plastic PLCC
T = 28 Plastic TSOP
SPEED
45 = 45ns
55 = 55ns
70 = 70ns
90 = 90ns
BASE PART NUMBER
EN = EON Silicon Devices
27 = EPROM
C = CMOS
512 = 64K x 8
4800 Great America Parkway Ste 202
Santa Clara, CA. 95054
12
Tel: 408-235-8680
Fax: 408-235-8685

12 Page





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