Motor de Búsqueda de Datasheet de Componentes Electrónicos
  Spanish  ▼
ALLDATASHEET.ES

X  

27LV64 Datasheet(PDF) 6 Page - Microchip Technology

No. de pieza 27LV64
Descripción Electrónicos  64K (8K x 8) Low-Voltage CMOS EPROM
Download  10 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  MICROCHIP [Microchip Technology]
Página de inicio  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

27LV64 Datasheet(HTML) 6 Page - Microchip Technology

Back Button 27LV64 Datasheet HTML 2Page - Microchip Technology 27LV64 Datasheet HTML 3Page - Microchip Technology 27LV64 Datasheet HTML 4Page - Microchip Technology 27LV64 Datasheet HTML 5Page - Microchip Technology 27LV64 Datasheet HTML 6Page - Microchip Technology 27LV64 Datasheet HTML 7Page - Microchip Technology 27LV64 Datasheet HTML 8Page - Microchip Technology 27LV64 Datasheet HTML 9Page - Microchip Technology 27LV64 Datasheet HTML 10Page - Microchip Technology  
Zoom Inzoom in Zoom Outzoom out
 6 / 10 page
background image
27LV64
DS11024F-page 6
 2004 Microchip Technology Inc.
1.3
Standby Mode
The standby mode is defined when the CE pin is high
(VIH) and a program mode is not defined.
When these conditions are met, the supply current will
drop from 20 mA to 100
µA.
1.4
Output Enable
This feature eliminates bus contention in microproces-
sor-based systems in which multiple devices may drive
the bus. The outputs go into a high impedance state
when the following condition is true:
•The OE and PGM pins are both high.
1.5
Erase Mode (U.V. Windowed
Versions)
Windowed products offer the capability to erase the
memory array. The memory matrix is erased to the all
1’s state when exposed to ultraviolet light. To ensure
complete erasure, a dose of 15 watt-second/cm2 is
required. This means that the device window must be
placed within one inch and directly underneath an ultra-
violet lamp with a wavelength of 2537 Angstroms,
intensity of 12,000
µW/cm2 for approximately 20 min-
utes.
1.6
Programming Mode
The Express Algorithm has been developed to improve
the programming throughput times in a production
environment. Up to ten 100-microsecond pulses are
applied until the byte is verified. No overprogramming
is required. A flowchart of the express algorithm is
shown in Figure 1-3.
Programming takes place when:
a)
VCC is brought to the proper voltage,
b)
VPP is brought to the proper VH level,
c)
the CE pin is low,
d)
the OE pin is high, and
e)
the PGM pin is low.
Since the erased state is “1” in the array, programming
of “0” is required. The address to be programmed is set
via pins A0-A12 and the data to be programmed is pre-
sented to pins O0-O7. When data and address are sta-
ble, OE is high, CE is low and a low-going pulse on the
PGM line programs that location.
1.7
Verify
After the array has been programmed it must be veri-
fied to ensure all the bits have been correctly pro-
grammed. This mode is entered when all the following
conditions are met:
a)
VCC is at the proper level,
b)
VPP is at the proper VH level,
c)
the CE line is low,
d)
the PGM line is high, and
e)
the OE line is low.
1.8
Inhibit
When programming multiple devices in parallel with dif-
ferent data, only CE or PGM need be under separate
control to each device. By pulsing the CE or PGM line
low on a particular device in conjunction with the PGM
or CE line low, that device will be programmed; all other
devices with CE or PGM held high will not be pro-
grammed with the data, although address and data will
be available on their input pins (i.e., when a high level
is present on CE or PGM); and the device is inhibited
from programming.
1.9
Identity Mode
In this mode specific data is output which identifies the
manufacturer as Microchip Technology Inc. and device
type. This mode is entered when Pin A9 is taken to VH
(11.5V to 12.5V). The CE and OE lines must be at VIL.
A0 is used to access any of the two non-erasable bytes
whose data appears on O0 through O7.
Pin
Input
Output
Identity
A0
0
7
O
6
O
5
O
4
O
3
O
2
O
1
O
0
H
e
x
Manufacturer
Device Type*
VIL
VIH
0
0
0
0
1
0
0
0
1
0
0
0
0
1
1
0
29
02
* Code subject to change


Número de pieza similar - 27LV64

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Microchip Technology
27LV64 MICROCHIP-27LV64 Datasheet
128Kb / 10P
   64K (8K x 8) Low-Voltage CMOS EPROM
2004
27LV64-20/L MICROCHIP-27LV64-20/L Datasheet
128Kb / 10P
   64K (8K x 8) Low-Voltage CMOS EPROM
2004
27LV64-20/P MICROCHIP-27LV64-20/P Datasheet
128Kb / 10P
   64K (8K x 8) Low-Voltage CMOS EPROM
2004
27LV64-20/SO MICROCHIP-27LV64-20/SO Datasheet
128Kb / 10P
   64K (8K x 8) Low-Voltage CMOS EPROM
2004
27LV64-20I/L MICROCHIP-27LV64-20I/L Datasheet
128Kb / 10P
   64K (8K x 8) Low-Voltage CMOS EPROM
2004
More results

Descripción similar - 27LV64

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Microchip Technology
27LV64 MICROCHIP-27LV64 Datasheet
128Kb / 10P
   64K (8K x 8) Low-Voltage CMOS EPROM
2004
27C64 MICROCHIP-27C64 Datasheet
126Kb / 10P
   64K (8K x 8) CMOS EPROM
2004
logo
NXP Semiconductors
27HC641 PHILIPS-27HC641 Datasheet
273Kb / 8P
   64K BIT CMOS EPROM (8K X 8)
November 12 1990
27C64A PHILIPS-27C64A Datasheet
528Kb / 14P
   64K-bit CMOS EPROM(8K x 8)
November 12 1990
logo
Microchip Technology
28LV64A MICROCHIP-28LV64A_04 Datasheet
131Kb / 10P
   64K (8K x 8) Low Voltage CMOS EEPROM
2004
28LV64A MICROCHIP-28LV64A Datasheet
53Kb / 8P
   64K (8K x 8) Low Voltage CMOS EEPROM
1996
logo
STMicroelectronics
M2764A STMICROELECTRONICS-M2764A Datasheet
109Kb / 10P
   NMOS 64K (8K x 8) UV EPROM
March 1995
logo
ATMEL Corporation
AT27LV512A ATMEL-AT27LV512A Datasheet
220Kb / 9P
   512K 64K x 8 Low Voltage OTP CMOS EPROM
logo
AMIC Technology
A276308 AMICC-A276308 Datasheet
127Kb / 15P
   64K X 8 OTP CMOS EPROM
logo
Microchip Technology
27C512A MICROCHIP-27C512A_04 Datasheet
133Kb / 10P
   512K (64K x 8) CMOS EPROM
2004
More results


Html Pages

1 2 3 4 5 6 7 8 9 10


Datasheet Descarga

Go To PDF Page


Enlace URL




Política de Privacidad
ALLDATASHEET.ES
¿ALLDATASHEET es útil para Ud.?  [ DONATE ] 

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Intercambio de Enlaces   |   Lista de Fabricantes
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com