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参数资料
型号： W19B320BTT7H
厂商： Winbond Electronics
文件页数： 4/51页
文件大小： 0K
描述： IC FLASH 32MBIT 70NS 48TSOP
标准包装： 96
格式 - 存储器： 闪存
存储器类型： FLASH
存储容量： 32M（4M x 8，2M x 16）
速度： 70ns
接口： 并联
电源电压： 2.7 V ~ 3.6 V
工作温度： -20°C ~ 85°C
封装/外壳： 48-TFSOP（0.724"，18.40mm 宽）
供应商设备封装： 48-TSOP
包装： 托盘
其它名称： W19B320BTT-H
W19B320BTT-H-ND

W19B320BT/B DATASHEET
1. GENERAL DESCRIPTION
The W19B320BT/B is a 32Mbit, 2.7~3.6-volt single bank CMOS flash memory organized as 4M x 8 or 2M × 16
bits. The word-wide ( × 16) data appears on DQ15-DQ0, and byte-wide (x 8) data appears on DQ7-DQ0. The
device can be programmed and erased in-system with a standard 3.0-volt power supply. A 12-volt V PP is not
required. The unique cell architecture of the W19B320BT/B results in fast program/erase operations with
extremely low current consumption (compared to other comparable 3-volt flash memory products). The device
can also be programmed and erased by using standard EPROM programmers.
2. FEATURES
Performance
? 2.7~3.6-volt write (program and erase)
operations
? Fast write operation
? Sector erases time: 0.4 Sec (typical)
? Chip erases time: 30Sec (typical)
? Byte/Word programming time: 7/9 μ s (typical)
? Read access time: 70 ns
? Typical program/erase cycles: 100K
? Twenty-year data retention
? Ultra low power consumption
? Active current (Read): 10 mA (typical)
? Active current (Read while Erase): 21 mA
(typical)
? Standby current: 0.2 μ A (typical)
Architecture
? Sector erase architecture
? Eight 8KB, and sixty-three 64KB sectors
? Top or bottom boot block configurations
available
? Supports full chip erase
? Security Sector Size: 256 Bytes
? The Security Sector is an OTP; once the sector
is programmed, it cannot be erased
? JEDEC standard byte-wide and word-wide
pinouts
? Compatible with common Flash Memory
Interface (CFI) specification
? Flash device parameters stored directly on the
device
? Allows software driver to identify and use a
variety of different current and future Flash
products
? End of program detection
? Software method: Toggle bit/Data polling
? Unlock Bypass Program command
? Reduces overall programming time when
issuing multiple program command sequences
Hardware Features
? Ready/#Busy output (RY/#BY)
? Detect program or erase cycle completion
? Hardware reset pin (#RESET)
? Reset the internal state machine to the read
mode
? #WP/ACC input pin
? Write protect (#WP) function allows protection
of two outermost boot sectors, regardless of
sector protection status
Temperature range
? Extended temperature range (-20 ℃ to 85 ℃ ) ?
? Manufactured on WinStack 0.13 μ m process
technology
? Available packages: 48-pin TSOP
Software Features
Publication Release Date:Dec, 22, 2008
-4-
Revisionv A5
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