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Teilenummer | EN27C512 |
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Beschreibung | 512KBIT EPROM | |
Hersteller | EON | |
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Gesamt 12 Seiten 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
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 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 | ||
Seiten | Gesamt 12 Seiten | |
PDF Download | [ EN27C512 Schematic.PDF ] |
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