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EN29LV640 Schematic ( PDF Datasheet ) - Eon Silicon Solution

Teilenummer EN29LV640
Beschreibung Uniform Sector Flash Memory
Hersteller Eon Silicon Solution
Logo Eon Silicon Solution Logo 




Gesamt 45 Seiten
EN29LV640 Datasheet, Funktion
www.DataSheet4U.com
EN29LV640
64 Megabit (4M x 16-bit ) CMOS 3.0 Volt-only,
Uniform Sector Flash Memory
EN29LV640
FEATURES
Single power supply operation
- Full voltage range: 2.7 to 3.6 volts for read,
erase and program operations
Low power consumption (typical values at 5
MHz)
- 9 mA typical active read current
- 20 mA typical program/erase current
- Less than 1 μA current in standby or automatic
sleep mode.
JEDEC standards compatible
- Pinout and software compatible with single-
power supply Flash standard
Manufactured on 0.18μm process
technology
Flexible Sector Architecture:
- One hundred and twenty-eight 32K-Word /
64K-byte sectors.
Minimum 100K program/erase endurance
cycles.
High performance for program and erase
- Word program time: 8µs typical
- Sector Erase time: 500ms typical
- Chip Erase time: 64s typical
Package Options
- 48-pin TSOP
- 48-ball FBGA
„ Software features:
Sector Group Protection
- Provide locking of sectors to prevent program
or erase operations within individual sectors
- Additionally, temporary Sector Group
Unprotect allows code changes in previously
protected sectors.
Standard DATA# polling and toggle bits
feature
Unlock Bypass Program command supported
Sector Erase Suspend / Resume modes:
Read and program another Sector during
Sector Erase Suspend Mode
Support JEDEC Common Flash Interface
(CFI).
„ Hardware features:
Pin compatible to lower density, easy
replacement for code expansion.
RESET# hardware reset pin
- Hardware method to reset the device to read
mode.
WP#/ACC input pin
- Write Protect (WP#) function allows
protection of first or last 32K-word sector,
regardless of previous sector protect status
- Acceleration (ACC) function provides
accelerated program times
GENERAL DESCRIPTION
The EN29LV640H/L / EN29LV640U is a 64-Megabit ( 4Mx16 ), electrically erasable, read/write non-
volatile flash memory. Any word can be programmed typically in 8µs. This device is entirely
command set compatible with the JEDEC single-power-supply Flash standard.
The EN29LV640H/L / EN29LV640U is designed to allow either single Sector or full Chip erase
operation, where each Sector Group can be protected against program/erase operations or
temporarily unprotected to erase or program. The device can sustain a minimum of 100K
program/erase cycles on each Sector.
This Data Sheet may be revised by subsequent versions 1
or modifications due to changes in technical specifications.
©2005 Eon Silicon Solution, Inc., www.essi.com.tw
Rev. C, Issue Date: 2007/01/23






EN29LV640 Datasheet, Funktion
www.DataSheet4U.com
Table 2. Sector (Group) Address Tables
EN29LV640
Sector Group
Protect/Unprotect
Sector
Group
A21-A17
SG0
00000
SG1
00001
SG2
00010
SG3
00011
SG4
00100
SG5
00101
SG6
00110
SG7
00111
Sector
SA0
SA1
SA2
SA3
SA4
SA5
SA6
SA7
SA8
SA9
SA10
SA11
SA12
SA13
SA14
SA15
SA16
SA17
SA18
SA19
SA20
SA21
SA22
SA23
SA24
SA25
SA26
SA27
SA28
SA29
SA30
SA31
Sector Address Range for Sector Erase
A21 A20 A19 A18 A17 A16 A15
0000000
0000001
0000010
0000011
0000100
0000101
0000110
0000111
0001000
0001001
0001010
0001011
0001100
0001101
0001110
0001111
0010000
0010001
0010010
0010011
0010100
0010101
0010110
0010111
0011000
0011001
0011010
0011011
0011100
0011101
0011110
0011111
Address Range
(hexadecimal)
000000–007FFF
008000–00FFFF
010000–017FFF
018000–01FFFF
020000–027FFF
028000–02FFFF
030000–037FFF
038000–03FFFF
040000–047FFF
048000–04FFFF
050000–057FFF
058000–05FFFF
060000–067FFF
068000–06FFFF
070000–077FFF
078000–07FFFF
080000–087FFF
088000–08FFFF
090000–097FFF
098000–09FFFF
0A0000–0A7FFF
0A8000–0AFFFF
0B0000–0B7FFF
0B8000–0BFFFF
0C0000–0C7FFF
0C8000–0CFFFF
0D0000–0D7FFF
0D8000–0DFFFF
0E0000–0E7FFF
0E8000–0EFFFF
0F0000–0F7FFF
0F8000–0FFFFF
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
6 ©2005 Eon Silicon Solution, Inc., www.essi.com.tw
Rev. C, Issue Date: 2007/01/23

6 Page









EN29LV640 pdf, datenblatt
www.DataSheet4U.com
EN29LV640
“Command Definitions” for details on using the autoselect mode. Note that a Reset command is
required to return to read mode when the device is in the autoselect mode.
TABLE 4. Autoselect Codes (Using High Voltage, V )IDB B
Description
CE# OE# WE#
Manufacturer ID:
Eon
L
L
H
A21
to
A15
X
A14 A5
to
A92
PP
A8
A7
A6
to
A1 A0
DQ15 to DQ0
A10 A2
H1
PP
X VIDB B
XLXLL
L
XX1Ch
XX7Fh
Autoselect
Device ID
L
Sector Protection
Verification
L
L
L
H
X
X
VIDB B
X
X
L
X
L
H
227Eh
XX01h
H
SA
X
VIDB B
X
X
L
X
H
L
(Protected)
XX00h
(Unprotected)
L=logic low= V ,ILB B H=Logic High= V ,IHB B VIDB B =11 ± 0.5V, X=Don’t Care (either L or H, but not floating!), SA=Sector
Addresses
Note:
1. A8=H is recommended for Manufacturing ID check. If a manufacturing ID is read with A8=L, the chip will output a
configuration code 7Fh.
2. A9 = VIDB B is for HV A9 Autoselect mode only. A9 must be Vcc (CMOS logic level) for Command Autoselect
Mode.
RESET#: Hardware Reset
When RESET# is driven low for t ,RPB B all output pins are tristates. All commands written in the internal
state machine are reset to reading array data.
Please refer to timing diagram for RESET# pin in “AC Characteristics”.
Sector Group Protection & Unprotection
The hardware sector group protection feature disables both program and erase operations in any sector
group. The hardware chip unprotection feature re-enables both program and erase operations in previously
protected sector group. A sector group consists of four adjacent sectors that would be protected at the
same time. Please see Table 2 which show the organization of sector groups.
There are two methods to enable this hardware protection circuitry. The first one requires only that the
RESET# pin be at VID and then standard microprocessor timings can be used to enable or disable this
feature. See Flowchart 6a and 6b for the algorithm and Figure 11 for the timings.
When doing Sector Group Unprotect, all the unprotected sector groups must be protected prior to any
unprotect write cycle.
The second method is for programming equipment. This method requires VID to be applied to both OE#
and A9 pins and non-standard microprocessor timings are used. This method is described in a
separate document, the Datasheet Supplement of EN29LV640H/L ; EN29LV640U, which can be
obtained by contacting a representative of Eon Silicon Solution, Inc.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
12 ©2005 Eon Silicon Solution, Inc., www.essi.com.tw
Rev. C, Issue Date: 2007/01/23

12 Page





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