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부품번호 | S29AS008J 기능 |
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기능 | Boot Sector Flash | ||
제조업체 | Cypress Semiconductor | ||
로고 | |||
전체 30 페이지수
S29AS008J
8 Mbit (1M x 8-Bit / 512K x 16-Bit), 1.8 V
Boot Sector Flash
Distinctive Characteristics
Architectural Advantages
Single Power Supply Operation
– Full voltage range: 1.65 to 1.95 volt read and write operations for
battery-powered applications
Manufactured on 110 nm Process Technology
Secured Silicon Sector region
– 128-word/256-byte sector for permanent, secure identification
through an 8-word/16-byte random Electronic Serial Number,
accessible through a command sequence
– May be programmed and locked at the factory or by the customer
Flexible Sector Architecture
– Eight 8 Kbyte and fifteen 64 Kbyte sectors (byte mode)
– Eight 4 Kword, and fifteen 32 Kword sectors (word mode)
Sector Group Protection Features
– A hardware method of locking a sector to prevent any program or
erase operations within that sector
– Sectors can be locked in-system or via programming equipment
– Temporary Sector Group Unprotect feature allows code changes
in previously locked sectors
Unlock Bypass Program Command
– Reduces overall programming time when issuing multiple program
command sequences
Top or Bottom Boot Block Configurations Available
Compatibility with JEDEC standards
– Pinout and software compatible with single-power supply Flash
– Superior inadvertent write protection
Performance Characteristics
High Performance
– Access times as fast as 70 ns
– Industrial temperature range (-40°C to +85°C)
– Word programming time as fast as 6 µs (typical)
Ultra Low Power Consumption (typical values at 5 MHz)
– 15 µA Automatic Sleep mode current
– 8 µA standby mode current
– 8 mA read current
– 20 mA program/erase current
Cycling Endurance: 1,000,000 cycles per sector typical
Data Retention: 20 years typical
Package Options
48-ball BGA
48-pin TSOP
Software Features
CFI (Common Flash Interface) Compliant
– Provides device-specific information to the system, allowing host
software to easily reconfigure for different Flash devices
Erase Suspend/Erase Resume
– Suspends an erase operation to read data from, or program data
to, a sector that is not being erased, then resumes the erase
operation
Data# Polling and Toggle Bits
– Provides a software method of detecting program or erase
operation completion
Hardware Features
Ready/Busy# Pin (RY/BY#)
– Provides a hardware method of detecting program or erase cycle
completion
Hardware Reset Pin (RESET#)
– Hardware method to reset the device to reading array data
WP# input pin
– Write protect (WP#) function allows protection of two outermost
boot sectors (boot sector models only), regardless of sector group
protect status
Cypress Semiconductor Corporation • 198 Champion Court
Document Number: 002-00870 Rev.*J
• San Jose, CA 95134-1709 • 408-943-2600
Revised December 09, 2015
1. Product Selector Guide
Family Part Number
Speed Option
Max access time, ns (tACC)
Max CE# access time, ns (tCE)
Max OE# access time, ns (tOE)
Voltage Range: VCC = 1.65–1.95 V
Note
See AC Characteristics on page 39 for full specifications.
2. Block Diagram
RY/BY#
VCC
VSS
RESET#
Sector Switches
Erase Voltage
Generator
WE#
BYTE#
WP#
CE#
OE#
State
Control
Command
Register
PGM Voltage
Generator
Chip Enable
Output Enable
Logic
S29AS008J
S29AS008J
70
70
70
25
DQ0–DQ15 (A-1)
Input/Output
Buffers
Data
Latch
VCC Detector
A0–A18
Timer
Y-Decoder
X-Decoder
Y-Gating
Cell Matrix
Document Number: 002-00870 Rev.*J
Page 4 of 54
4페이지 S29AS008J
4. Pin Configuration
A0–A18
DQ0–DQ14
DQ15/A-1
BYTE#
CE#
OE#
WE#
WP#
RESET#
RY/BY#
VCC
VSS
NC
19 addresses
15 data inputs/outputs
DQ15 (data input/output, word mode), A-1 (LSB address input, byte mode)
Selects 8-bit or 16-bit mode
Chip enable
Output enable
Write enable
Write protect: The WP# contains an internal pull-up; when unconnected, WP is at VIH.
Hardware reset pin
Ready/Busy output
1.8 volt-only single power supply (see Product Selector Guide on page 4 for speed options and voltage supply
tolerances)
Device ground
Pin not connected internally
5. Logic Symbol
19
A0–A18
16 or 8
DQ0–DQ15
(A-1)
CE#
OE#
WE#
RESET#
BYTE#
WP#
RY/BY#
Document Number: 002-00870 Rev.*J
Page 7 of 54
7페이지 | |||
구 성 | 총 30 페이지수 | ||
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부품번호 | 상세설명 및 기능 | 제조사 |
S29AS008J | Boot Sector Flash | Cypress Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |