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27C512A 데이터시트 PDF




Microchip Technology에서 제조한 전자 부품 27C512A은 전자 산업 및 응용 분야에서
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부품번호 27C512A 기능
기능 512K (64K x 8) CMOS EPROM
제조업체 Microchip Technology
로고 Microchip Technology 로고


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27C512A 데이터시트, 핀배열, 회로
27C512A
512K (64K x 8) CMOS EPROM
FEATURES
• High speed performance
• CMOS Technology for low power consumption
- 25 mA Active current
- 30 µA Standby current
• Factory programming available
• Auto-insertion-compatible plastic packages
• Auto ID aids automated programming
• High speed express programming algorithm
• Organized 64K x 8: JEDEC standard pinouts
- 28-pin Dual-in-line package
- 32-pin PLCC Package
- 28-pin SOIC package
- 28-pin TSOP package
- 28-pin VSOP package
- Tape and reel
• Data Retention > 200 years
• Available for the following temperature ranges
- Commercial: 0˚C to +70˚C
- Industrial:
-40˚C to +85˚C
- Automotive:
-40˚C to +125˚C
DESCRIPTION
The Microchip Technology Inc. 27C512A is a CMOS
512K bit electrically Programmable Read Only Memory
(EPROM). The device is organized into 64K words by
8 bits (64K bytes). Accessing individual bytes from an
address transition or from power-up (chip enable pin
going low) is accomplished in less than 90 ns. This
very high speed device allows the most sophisticated
microprocessors to run at full speed without the need
for WAIT states. CMOS design and processing enables
this part to be used in systems where reduced power
consumption and high reliability are requirements.
A complete family of packages is offered to provide the
most flexibility in applications. For surface mount appli-
cations, PLCC, VSOP, TSOP or SOIC packaging is
available. Tape or reel packaging is also available for
PLCC or SOIC packages.
PACKAGE TYPES
TSOP
OE/VPP
A11
A9
A8
A13
A14
VCC
1
2
3
4
5
6
7
A15 8
A12 9
A7 10
A6 11
A5 12
A4 13
A3 14
PLCC
27C512A
28 A10
27 CE
26 D7
25 D6
24 D5
23 D4
22 D3
21 VSS
20 D2
19 D1
18 D0
17 A0
16 A1
15 A2
A6 5
A5 6
A4 7
A3 8
A2 9
A1 10
A0 11
NC 12
O0 13
29 A8
28 A9
27 A11
26 NC
25 OE/VPP
24 A10
23 CE
22 O7
21 O6
DIP/SOIC
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
O0
O1
O2
VSS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28 VCC
27 A14
26 A13
25 A8
24 A9
23 A11
22 OE/VPP
21 A10
20 CE
19 O7
18 O6
17 O5
16 O4
15 O3
VSOP
OE/VPP
A11
A9
A8
A13
A14
VCC
A15
A12
A7
A6
A5
A4
A3
22
23
24
25
26
27
28
1
2
3
4
5
6
7
27C512A
21 A10
20 CE
19 O7
18 O6
17 O5
16 O4
15 O3
14 VSS
13 O2
12 O1
11 O0
10 A0
9 A1
8 A2
© 1996 Microchip Technology Inc.
This document was created with FrameMaker 4 0 4
DS11173E-page 1




27C512A pdf, 반도체, 판매, 대치품
27C512A
TABLE 1-4: PROGRAMMING DC CHARACTERISTICS
Ambient Temperature: Tamb = 25°C ± 5°C
VCC = 6.5V ± 0.25V, OE/VPP = VH = 13.0V ± 0.25V
Parameter
Status Symbol Min. Max. Units
Conditions (See Note 1)
Input Voltages
Logic “1”
Logic “0”
VIH
VIL
2.0 VCC+1
-0.1 0.8
V
V
Input Leakage
ILI
-10 10
µA VIN = 0V to VCC
Output Voltages
Logic “1”
Logic “0”
VOH
VOL
2.4
— 0.45
V IOH = -400 µA
V IOL = 2.1 mA
VCC Current, program & verify —
ICC2
— 35 mA CE = VIL
OE/VPP Current, program
— IPP2 — 25 mA
A9 Product Identification
— VID 11.5 12.5 V
Note 1: VCC must be applied simultaneously or before VPP voltage on OE/VPP and removed simultaneously or after
the VPP voltage on OE/VPP.
TABLE 1-5: PROGRAMMING AC CHARACTERISTICS
for Program, Program Verify
and Program Inhibit Modes
AC Testing Waveform: VIH=2.4V and VIL=0.45V; VOH=2.0V; VOL=0.8V
Ambient Temperature: 25°C ±5°C
VCC = 6.5V ± 0.25V, OE/VPP = VH = 13.0V ± 0.25 V
Parameter
Symbol Min. Max. Units
Remarks
Address Set-Up Time
tAS 2 — µs
Data Set-Up Time
tDS 2 — µs
Data Hold Time
tDH 2 — µs
Address Hold Time
tAH 0 — µs
Float Delay (2)
tDF 0 130 ns
VCC Set-Up Time
tVCS
2 — µs
Program Pulse Width (1)
tPW 95 105 µs 100 µs typical
CE Set-Up Time
tCES
2 — µs
OE Set-Up Time
tOES
2 — µs
OE Hold Time
tOEH
2 — µs
OE Recovery Time
tOR 2 — µs
OE /VPP Rise Time During Programming
tPRT
50 — ns
Note 1: For express algorithm, initial programming width tolerance is 100 µs ±5%.
2: This parameter is only sampled and not 100% teted. Output float is defined as the point where data is no
longer driven (see timing diagram).
DS11173E-page 4
© 1996 Microchip Technology Inc.

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27C512A 전자부품, 판매, 대치품
27C512A
FIGURE 1-3: PROGRAMMING EXPRESS ALGORITHM
Conditions:
Tamb = 25˚C ±5˚C
VCC = 6.5 ±0.25V
VPP = 13.0 ±0.25V
Start
ADDR = First Location
VCC = 6.5V
VPP = 13.0V
X=0
Program one 100 µs pulse
Increment X
Verify
Byte
Pass
Fail
No Yes Device
X = 10 ?
Failed
Last Yes
Address?
No
Increment Address
VCC = VPP = 4.5V, 5.5V
All
Device Yes bytes No Device
Passed
= original
Failed
data?
© 1996 Microchip Technology Inc.
DS11173E-page 7

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