CMOS EPROM. 27C128 Datasheet

27C128 EPROM. Datasheet pdf. Equivalent

27C128 Datasheet
Recommendation 27C128 Datasheet
Part 27C128
Description 128K (16K x 8) CMOS EPROM
Feature 27C128; 27C128 128K (16K x 8) CMOS EPROM FEATURES • High speed performance - 120 ns access time available • .
Manufacture Microchip
Datasheet
Download 27C128 Datasheet




Microchip 27C128
27C128
128K (16K x 8) CMOS EPROM
FEATURES
• High speed performance
- 120 ns access time available
• CMOS Technology for low power consumption
- 20 mA Active current
- 100 µA Standby current
• Factory programming available
• Auto-insertion-compatible plastic packages
• Auto ID aids automated programming
• Separate chip enable and output enable controls
• High speed “express” programming algorithm
• Organized 16K x 8: JEDEC standard pinouts
- 28-pin Dual-in-line package
- 32-pin PLCC Package
- 28-pin SOIC package
- Tape and reel
• 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. 27C128 is a CMOS
128K bit (electrically) Programmable Read Only Mem-
ory. The device is organized as 16K words by 8 bits
(16K bytes). Accessing individual bytes from an
address transition or from power-up (chip enable pin
going low) is accomplished in less than 120 ns. 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 pack-
ages is offered to provide the most flexibility in applica-
tions. For surface mount applications, PLCC, SOIC, or
TSOP packaging is available. Tape and reel packaging
is also available for PLCC or SOIC packages. UV eras-
able versions are also available.
A complete family of packages is offered to provide the
most flexibility in applications. For surface mount appli-
cations, PLCC or SOIC packaging is available. Tape
and reel packaging is also available for PLCC or SOIC
packages.
PACKAGE TYPES
DIP/SOIC
VPP • 1
A12 2
A7 3
A6 4
A5 5
A4 6
A3 7
A2 8
A1 9
A0 10
O0 11
O1 12
O2 13
VSS 14
28 VCC
27 PGM
26 A13
25 A8
24 A9
23 A11
22 OE
21 A10
20 CE
19 O7
18 O6
17 O5
16 O4
15 O3
PLCC
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
24 A10
23 CE
22 O7
21 O6
© 1996 Microchip Technology Inc.
This document was created with FrameMaker 4 0 4
DS11003K-page 1



Microchip 27C128
27C128
1.0 ELECTRICAL CHARACTERISTICS
1.1 Maximum Ratings*
VCC and input voltages w.r.t. VSS ........ -0.6V to +7.25V
VPP voltage w.r.t. VSS during
programming .......................................... -0.6V to +14V
Voltage on A9 w.r.t. VSS ...................... -0.6V to +13.5V
Output voltage w.r.t. VSS ............... -0.6V to VCC +1.0V
Storage temperature .......................... -65˚C to +150˚C
Ambient temp. with power applied ..... -65˚C to +125˚C
*Notice: Stresses above those listed under “Maximum Ratings”
may cause permanent damage to the device. This is a stress rat-
ing only and functional operation of the device at those or any
other conditions above those indicated in the operation listings of
this specification is not implied. Exposure to maximum rating con-
ditions for extended periods may affect device reliability.
TABLE 1-1: PIN FUNCTION TABLE
Name
A0-A13
CE
OE
PGM
VPP
O0 - O7
VCC
VSS
NC
NU
Function
Address Inputs
Chip Enable
Output Enable
Program Enable
Programming Voltage
Data Output
+5V Power Supply
Ground
No Connection; No Internal Connec-
tions
Not Used; No External Connection Is
Allowed
TABLE 1-2: READ OPERATION DC CHARACTERISTICS
VCC = +5V (±10%)
Commercial:
Industrial:
Extended (Automotive):
Tamb = 0˚C to +70˚C
Tamb = -40˚C to +85˚C
Tamb = -40°C to +125°C
Parameter
Part* Status Symbol Min. Max. Units
Conditions
Input Voltages
all Logic "1" VIH 2.0 VCC+1 V
Logic "0" VIL -0.5 0.8 V
Input Leakage
all —
ILI -10 10 µA VIN = 0 to VCC
Output Voltages
all Logic "1" VOH 2.4
V IOH = -400 µA
Logic "0"
VOL
0.45 V IOL = 2.1 mA
Output Leakage
all —
ILO -10 10 µA VOUT = 0V to VCC
Input Capacitance
all —
CIN
6 pF VIN = 0V; Tamb = 25°C;
f = 1 MHz
Output Capacitance
all
COUT
12 pF VOUT = 0V; Tamb = 25°C;
f = 1 MHz
Power Supply Current, C TTL input ICC1 — 20 mA VCC = 5.5V; VPP = VCC
Active
I,E TTL input ICC2 — 25 mA f = 1 MHz;
OE = CE = VIL;
IOUT = 0 mA;
VIL = -0.1 to 0.8V;
VIH = 2.0 to VCC;
Note 1
Power Supply Current,
Standby
C TTL input ICC(S)
I, E TTL input
all CMOS input
2 mA
3 mA
100 µA CE = VCC ± 0.2V
IPP Read Current
VPP Read Voltage
all Read Mode
all Read Mode
IPP 100
VPP VCC-0.7 VCC
µA VPP = 5.5V
V
* Parts: C=Commercial Temperature Range; I, E=Industrial and Extended Temperature Ranges
Note 1: Typical active current increases .75 mA per MHz up to operating frequency for all temperature ranges.
DS11003K-page 2
© 1996 Microchip Technology Inc.



Microchip 27C128
27C128
TABLE 1-3: READ OPERATION AC CHARACTERISTICS
AC Testing Waveform:
Output Load:
Input Rise and Fall Times:
Ambient Temperature:
VIH = 2.4V and VIL = 0.45V; VOH = 2.0V VOL = 0.8V
1 TTL Load + 100 pF
10 ns
Commercial:
Tamb = 0˚C to +70˚C
Industrial:
Tamb = -40˚C to +85˚C
Extended (Automotive): Tamb = -40°C to +125°C
Parameter
27C128-12 27C128-15 27C128-17 27C128-20 27C128-25
Sym
Units Conditions
Min Max Min Max Min Max Min Max Min Max
Address to Output Delay tACC — 120 — 150 — 170
CE to Output Delay
tCE — 120 — 150 — 170
OE to Output Delay
tOE — 65 — 70 — 70
CE or OE to O/P High
Impedance
tOFF 0 50 0 50 0 50
Output Hold from
Address CE or OE,
whichever occurs first
tOH 0 — 0 — 0 —
— 200 — 250
— 200 — 250
— 75 — 100
0 55 0 60
0—0—
ns CE=OE=VIL
ns OE=VIL
ns CE=VIL
ns
ns
FIGURE 1-1: READ WAVEFORMS
Address
VIH
VIL
VIH
CE
VIL
VIH
OE
VIL
Outputs
O0 - O7
VOH
VOL
High Z
Address Valid
tCE(2)
tOE(2)
tACC
tOFF(1,3)
tOH
Valid Output
High Z
Notes: (1) tOFF is specified for OE or CE, whichever occurs first
(2) OE may be delayed up to t CE - t OE after the falling edge of CE without impact on tCE
(3) This parameter is sampled and is not 100% tested.
© 1996 Microchip Technology Inc.
DS11003K-page 3







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