AT27C020-15JA [ETC]
x8 EPROM ; X8 EPROM\n
| 型号： | AT27C020-15JA |
| 厂家： | 
ETC |
| 描述： | x8 EPROM
|
| 文件： | 总11页 (文件大小：211K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Features
• Fast Read Access Time – 55 ns
• Low-power CMOS Operation
– 100 µA Max. Standby
– 25 mA Max. Active at 5 MHz
• JEDEC Standard Packages
– 32-lead 600-mil PDIP
– 32-lead PLCC
– 32-lead TSOP
• 5V =10% Supply
• High-reliability CMOS Technology
2-megabit
(256K x 8)
OTP EPROM
– 2,000V ESD Protection
– 200 mA Latch-up Immunity
• Rapid™ Programming Algorithm – 100 µs/Byte (Typical)
• CMOS- and TTL-compatible Inputs and Outputs
• Integrated Product Identification Code
• Commercial, Industrial and Automotive Temperature Ranges
Description
AT27C020
The AT27C020 is a low-power, high performance, 2,097,152-bit, one-time program-
mable read-only memory (OTP EPROM) organized as 256K by 8 bits. It requires only
one 5V power supply in normal read mode operation. Any byte can be accessed
in less than 55 ns, eliminating the need for speed-reducing WAIT states on high-
performance microprocessor systems.
(continued)
Pin Configurations
PLCC Top View
Pin Name
A0 - A17
O0 - O7
CE
Function
Addresses
A7
A6
A5
A4
A3
5
6
7
8
9
29 A14
Outputs
28 A13
27 A8
26 A9
25 A11
24 OE
23 A10
22 CE
21 07
Chip Enable
Output Enable
Program Strobe
OE
A2 10
A1 11
A0 12
O0 13
PGM
PDIP Top View
TSOP Top View
Type 1
VPP
A16
A15
A12
A7
1
2
3
4
5
6
7
8
9
32 VCC
31 PGM
30 A17
29 A14
28 A13
27 A8
26 A9
25 A11
24 OE
23 A10
22 CE
21 07
A11
A9
1
32
OE
A10
CE
07
2
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
A8
3
A13
A14
A17
PGM
VCC
VPP
A16
A15
A12
A7
4
A6
5
06
A5
6
05
A4
7
04
A3
8
03
A2 10
A1 11
A0 12
O0 13
O1 14
O2 15
GND 16
9
GND
02
10
11
12
13
14
15
16
01
20 06
O0
A0
A1
A2
A3
19 05
18 04
A6
17 03
A5
A4
Rev. 0570D–05/00
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In read mode, the AT27C020 typically consumes 8 mA.
Standby mode supply current is typically less than 10 µA.
System Considerations
Switching between active and standby conditions via the
Chip Enable pin may produce transient voltage excursions.
Unless accommodated by the system design, these tran-
sients may exceed datasheet limits, resulting in device non-
conformance. At a minimum, a 0.1 µF high-frequency, low
inherent inductance, ceramic capacitor should be utilized
for each device. This capacitor should be connected
between the VCC and Ground terminals of the device, as
close to the device as possible. Additionally, to stabilize the
supply-voltage level on printed circuit boards with large
EPROM arrays, a 4.7 µF bulk electrolytic capacitor should
be utilized, again connected between the VCC and Ground
terminals. This capacitor should be positioned as close as
possible to the point where the power supply is connected
to the array.
The AT27C020 is available in a choice of industry-standard
JEDEC-approved one-time programmable (OTP) plastic
PDIP, PLCC and TSOP packages. All devices feature two-
line control (CE, OE) to give designers the flexibility to pre-
vent bus contention.
With 256K bytes storage capability, the AT27C020 allows
firmware to be stored reliably and to be accessed by the
system without the delays of mass storage media.
Atmel’s 27C020 have additional features to ensure high
quality and efficient production use. The Rapid™ Program-
ming Algorithm reduces the time required to program the
part and guarantees reliable programming. Programming
time is typically only 100 µs/byte. The Integrated Product
Identification Code electronically identifies the device and
manufacturer. This feature is used by industry-standard
programming equipment to select the proper programming
algorithms and voltages.
Block Diagram
AT27C020
2
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AT27C020
Absolute Maximum Ratings*
*NOTICE:
Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age to the device. This is a stress rating only and
functional operation of the device at these or any
other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect device
reliability.
Temperature under Bias ................................ -55°C to +125°C
Storage Temperature..................................... -65°C to +150°C
Voltage on Any Pin with
Respect to Ground .........................................-2.0V to +7.0V(1)
Voltage on A9 with
Respect to Ground ......................................-2.0V to +14.0V(1)
VPP Supply Voltage with
Respect to Ground .......................................-2.0V to +14.0V(1)
Note:
1. Minimum voltage is -0.6V DC, which may undershoot to -2.0V for pulses of less than 20 ns. Maximum output pin voltage is
VCC + 0.75V DC, which may overshoot to +7.0V for pulses of less than 20 ns.
Operating Modes
Mode/Pin
CE
VIL
X
OE
VIL
VIH
X
PGM
X(1)
X
Ai
VPP
X
Outputs
DOUT
Read
Ai
Output Disable
Standby
X
X
High-Z
High-Z
DIN
VIH
VIL
VIL
VIH
X
X
X
Rapid Program(2)
PGM Verify
PGM Inhibit
VIH
VIL
X
VIL
VIH
X
Ai
Ai
VPP
VPP
VPP
DOUT
X
High-Z
(3)
A9 = VH
Product Identification(4)
VIL
VIL
X
A0 = VIH or VIL
A1 - A17 = VIL
X
Identification Code
Notes: 1. X can be VIL or VIH.
2. Refer to Programming Characteristics.
3. VH = 12.0 0.5V.
4. Two identifier bytes may be selected. All Ai inputs are held low (VIL) except A9, which is set to VH and A0, which is toggled
low (VIL) to select the Manufacturer’s Identification byte and high (VIH) to select the Device Code byte.
3
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DC and AC Operating Conditions for Read Operation
AT27C020
-55
-70
-90
-12
-15
Com.
Ind.
0°C - 70°C
-40°C - 85°C
0°C - 70°C
-40°C - 85°C
0°C - 70°C
-40°C - 85°C
-40°C - 125°C
5V =10%
0°C - 70°C
-40°C - 85°C
-40°C - 125°C
5V =10%
0°C - 70°C
-40°C - 85°C
-40°C - 125°C
5V =10%
Operating
Temperature (Case)
Auto.
VCC Power Supply
5V =10%
5V =10%
DC and Operating Characteristics for Read Operation
Symbol
Parameter
Condition
Min
Max
1.0
Units
µA
µA
µA
µA
mA
mA
V
ILI
Input Load Current
VIN = 0V to VCC (Com., Ind.)
ILO
Output Leakage Current
VOUT = 0V to VCC (Com., Ind.)
5.0
(2)
IPP
VPP(1) Read/Standby Current VPP = VCC
10
I
I
SB1 (CMOS), CE = VCC= 0.3V
SB2 (TTL), CE = 2.0 to VCC + 0.5V
100
1.0
ISB
VCC(1) Standby Current
ICC
VCC Active Current
Input Low Voltage
Input High Voltage
Output Low Voltage
Output High Voltage
f = 5 MHz, IOUT = 0 mA, CE = VIL
25
VIL
-0.6
2.0
0.8
VIH
VOL
VOH
VCC + 0.5
0.4
V
IOL = 2.1 mA
IOH = -400 µA
V
2.4
V
Notes: 1. VCC must be applied simultaneously or before VPP, and removed simultaneously or after VPP.
2. VPP may be connected directly to VCC except during programming. The supply current would then be the sum of ICC and IPP
.
AC Characteristics for Read Operation
AT27C020
-55
-70
-90
-12
-15
Symbol
Parameter
Condition
Min Max Min Max Min Max Min Max Min Max Units
CE =OE
= VIL
(3)
tACC
Address to Output Delay
55
70
90
120
150
ns
(2)
tCE
CE to Output Delay
OE to Output Delay
OE = VIL
CE = VIL
55
20
70
30
90
35
120
35
150
40
ns
ns
(2)(3)
tOE
OE or CE High toOutputFloat,
whichever occurred first
(4)(5)
tDF
18
20
20
30
40
ns
ns
Output Hold fromAddress, CE
or OE,whichever occurred first
tOH
7
7
0
0
0
Note:
2, 3, 4, 5. See AC Waveforms for Read Operation diagram.
AT27C020
4
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AT27C020
AC Waveforms for Read Operation(1)
Notes: 1. Timing measurement references are 0.8V and 2.0V. Input AC drive levels are 0.45V and 2.4V, unless otherwise specified.
2. OE may be delayed up to tCE - tOE after the falling edge of CE without impact on tCE
3. OE may be delayed up to tACC - tOE after the address is valid without impact on tACC
.
.
4. This parameter is only sampled and is not 100% tested.
5. Output float is defined as the point when data is no longer driven.
Input Test Waveforms and
Output Test Load
Measurement Levels
For -55 devices only:
3.0V
AC
AC
1.5V
DRIVING
LEVELS
MEASUREMENT
LEVEL
0.0V
tR, tF < 5 ns (10% to 90%)
Note:
CL = 100 pF including jig capacitance except -55
devices, where CL = 30 pF.
For -70, -90, -12, -15 devices only:
tR, tF < 20 ns (10% to 90%)
Pin Capacitance
f = 1 MHz, T = 25°C(1)
Symbol
CIN
Typ
4
Max
8
Units
pF
Conditions
VIN = 0V
COUT
8
12
pF
VOUT = 0V
Note:
1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.
5
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Programming Waveforms (1)
Notes: 1. The Input Timing reference is 0.8V for VIL and 2.0V for VIH.
2. tOE and tDFP are characteristics of the device but must be accommodated by the programmer.
3. When programming the AT27C020, a 0.1 µF capacitor is required across VPP and ground to suppress voltage transients.
DC Programming Characteristics
TA = 25 5°C, VCC = 6.5 0.25V, VPP = 13.0 0.25V
Limits
Symbol
ILI
Parameter
Test Conditions
Min
Max
10
Units
µA
V
Input Load Current
VIN = VIL, VIH
VIL
Input Low Level
-0.6
2.0
0.8
VIH
Input High Level
VCC + 1.0
0.4
V
VOL
VOH
ICC2
IPP2
VID
Output Low Voltage
Output High Voltage
VCC Supply Current (Program and Verify)
VPP Supply Current
IOL = 2.1 mA
IOH = -400 µA
V
2.4
V
40
20
mA
mA
V
CE = PGM = VIL
A9 Product Identification Voltage
11.5
12.5
AT27C020
6
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AT27C020
AC Programming Characteristics
TA = 25 5°C, VCC = 6.5 0.25V,VPP = 13.0 0.25V
Limits
Symbol
tAS
Parameter
Test Condition (1)
Min
Max
Units
µs
Address Setup Time
CE Setup Time
2
2
tCES
tOES
tDS
µs
OE Setup Time
Input Rise and Fall Times:
2
µs
(10% to 90%) 20 ns
Data Setup Time
2
µs
tAH
Address Hold Time
Data Hold Time
0
µs
Input Pulse Levels:
tDH
2
µs
0.45V to 2.4V
tDFP
tVPS
tVCS
tPW
OE High to Output Float Delay(2)
0
130
ns
Input Timing Reference Level:
0.8V to 2.0V
VPP Setup Time
2
µs
VCC Setup Time
2
µs
PGM Program Pulse Width(3)
95
105
150
µs
Output Timing Reference Level:
0.8V to 2.0V
tOE
Data Valid from OE
ns
VPP Pulse Rise Time During
Programming
tPRT
50
ns
Notes: 1. VCC must be applied simultaneously or before VPP and removed simultaneously or after VPP.
2. This parameter is only sampled and is not 100% tested. Output Float is defined as the point where data is no longer driven
— see timing diagram.
3. Program Pulse width tolerance is 100 µs 5%.
Atmel’s 27C020 Integrated Product Identification Code
Pins
Codes
A0
0
O7
0
O6
0
O5
0
O4
1
O3
1
O2
1
O1
1
O0
0
Hex Data
Manufacturer
Device Type
1E
86
1
1
0
0
0
0
1
1
0
7
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RapidProgramming Algorithm
A 100 µs PGM pulse width is used to program. The
address is set to the first location. VCC is raised to 6.5V and
VPP is raised to 13.0V. Each address is first programmed
with one 100 µs PGM pulse without verification. Then a
verification/reprogramming loop is executed for each
address. In the event a byte fails to pass verification, up to
10 successive 100 µs pulses are applied with a verification
after each pulse. If the byte fails to verify after 10 pulses
have been applied, the part is considered failed. After the
byte verifies properly, the next address is selected until all
have been checked. VPP is then lowered to 5.0V and VCC to
5.0V. All bytes are read again and compared with the origi-
nal data to determine if the device passes or fails.
AT27C020
8
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AT27C020
Ordering Information
ICC (mA)
tACC
(ns)
Active
Standby
Ordering Code
Package
Operation Range
55
25
0.1
AT27C020-55JC
AT27C020-55PC
AT27C020-55TC
32J
Commercial
32P6
32T
(0°C to 70°C)
25
25
25
25
25
0.1
0.1
0.1
0.1
0.1
AT27C020-55JI
AT27C020-55PI
AT27C020-55TI
32J
Industrial
32P6
32T
(-40°C to 85°C)
70
90
AT27C020-70JC
AT27C020-70PC
AT27C020-70TC
32J
Commercial
32P6
32T
(0°C to 70°C)
AT27C020-70JI
AT27C020-70PI
AT27C020-70TI
32J
Industrial
32P6
32T
(-40°C to 85°C)
AT27C020-90JC
AT27C020-90PC
AT27C020-90TC
32J
Commercial
32P6
32T
(0°C to 70°C)
AT27C020-90JI
AT27C020-90PI
AT27C020-90TI
32J
Industrial
32P6
32T
(-40°C to 85°C)
25
25
0.1
0.1
AT27C020-90JA
AT27C020-90PA
32J
Automotive
32P6
(-40°C to 125°C)
120
AT27C020-12JC
AT27C020-12PC
AT27C020-12TC
32J
Commercial
32P6
32T
(0°C to 70°C)
25
0.1
AT27C020-12JI
AT27C020-12PI
AT27C020-12TI
32J
Industrial
32P6
32T
(-40°C to 85°C)
25
25
0.1
0.1
AT27C020-12JA
AT27C020-12PA
32J
Automotive
32P6
(-40°C to 125°C)
150
AT27C020-15JC
AT27C020-15PC
AT27C020-15TC
32J
Commercial
32P6
32T
(0°C to 70°C)
25
25
0.1
0.1
AT27C020-15JI
AT27C020-15PI
AT27C020-15TI
32J
Industrial
32P6
32T
(-40°C to 85°C)
AT27C020-15JA
AT27C020-15PA
32J
Automotive
32P6
(-40°C to 125°C)
Package Type
32J
32-lead, Plastic J-leaded Chip Carrier (PLCC)
32P6
32T
32-lead, 0.600" Wide, Plastic Dual Inline Package (PDIP)
32-lead, Plastic Thin Small Outline Package (TSOP)
9
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Packaging Information
32J, 32-lead, Plastic J-leaded Chip Carrier (PLCC)
Dimensions in Inches and (Millimeters)
JEDEC STANDARD MS-016 AE
32P6, 32-lead, 0.600" Wide, Plastic Dual Inline
Package (PDIP)
Dimensions in Inches and (Millimeters)
.025(.635) X 30˚ - 45˚
1.67(42.4)
1.64(41.7)
.045(1.14) X 45˚ PIN NO. 1
.012(.305)
.008(.203)
PIN
1
IDENTIFY
.530(13.5)
.553(14.0)
.490(12.4)
.566(14.4)
.530(13.5)
.547(13.9)
.032(.813)
.021(.533)
.013(.330)
.595(15.1)
.026(.660)
.585(14.9)
.090(2.29)
MAX
1.500(38.10) REF
.030(.762)
.015(.381)
.095(2.41)
.060(1.52)
.140(3.56)
.120(3.05)
.050(1.27) TYP
.220(5.59)
MAX
.300(7.62) REF
.430(10.9)
.390(9.90)
.005(.127)
MIN
SEATING
PLANE
AT CONTACT
POINTS
.065(1.65)
.015(.381)
.022(.559)
.014(.356)
.161(4.09)
.125(3.18)
.065(1.65)
.041(1.04)
.110(2.79)
.090(2.29)
.022(.559) X 45˚ MAX (3X)
.630(16.0)
.590(15.0)
.453(11.5)
.447(11.4)
0
15
REF
.012(.305)
.008(.203)
.495(12.6)
.485(12.3)
.690(17.5)
.610(15.5)
32T, 32-lead, Plastic Thin Small Outline Package
(TSOP)
Dimensions in Millimeters and (Inches)*
JEDEC OUTLINE MO-142 BD
INDEX
MARK
18.5(.728)
18.3(.720)
20.2(.795)
19.8(.780)
0.50(.020)
BSC
0.25(.010)
0.15(.006)
7.50(.295)
REF
8.20(.323)
7.80(.307)
1.20(.047) MAX
0.15(.006)
0.05(.002)
0
0.20(.008)
0.10(.004)
REF
5
0.70(.028)
0.50(.020)
*Controlling dimension: millimeters
AT27C020
10
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Atmel Headquarters
Atmel Operations
Corporate Headquarters
2325 Orchard Parkway
San Jose, CA 95131
TEL (408) 441-0311
FAX (408) 487-2600
Atmel Colorado Springs
1150 E. Cheyenne Mtn. Blvd.
Colorado Springs, CO 80906
TEL (719) 576-3300
FAX (719) 540-1759
Europe
Atmel Rousset
Zone Industrielle
13106 Rousset Cedex
France
Atmel U.K., Ltd.
Coliseum Business Centre
Riverside Way
Camberley, Surrey GU15 3YL
England
TEL (33) 4-4253-6000
FAX (33) 4-4253-6001
TEL (44) 1276-686-677
FAX (44) 1276-686-697
Asia
Atmel Asia, Ltd.
Room 1219
Chinachem Golden Plaza
77 Mody Road Tsimhatsui
East Kowloon
Hong Kong
TEL (852) 2721-9778
FAX (852) 2722-1369
Japan
Atmel Japan K.K.
9F, Tonetsu Shinkawa Bldg.
1-24-8 Shinkawa
Chuo-ku, Tokyo 104-0033
Japan
TEL (81) 3-3523-3551
FAX (81) 3-3523-7581
Fax-on-Demand
North America:
1-(800) 292-8635
International:
1-(408) 441-0732
e-mail
literature@atmel.com
Web Site
http://www.atmel.com
BBS
1-(408) 436-4309
© Atmel Corporation 2000.
Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standard war-
ranty which is detailed in Atmel’s Terms and Conditions located on the Company’s web site. The Company assumes no responsibility for
any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without
notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual prop-
erty of Atmel are granted by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel’s products are
not authorized for use as critical components in life support devices or systems.
®
™
Marks bearing and/or are registered trademarks and trademarks of Atmel Corporation.
Terms and product names in this document may be trademarks of others.
Printed on recycled paper.
0570D–05/00/xM
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