参数资料
型号: SN74V273-15GGM
厂商: Texas Instruments, Inc.
英文描述: 8192 】 18, 16384 】 18, 32768 】 18, 65536 】 18 3.3-V CMOS FIRST-IN, FIRST-OUT MEMORIES
中文描述: 8192】18,16384】18,32768】18,65536】18的3.3V的CMOS先入先出存储器
文件页数: 4/52页
文件大小: 762K
代理商: SN74V273-15GGM
SN74V263, SN74V273, SN74V283, SN74V293
8192
×
18, 16384
×
18, 32768
×
18, 65536
×
18
3.3-V CMOS FIRST-IN, FIRST-OUT MEMORIES
SCAS669D
JUNE 2001
REVISED FEBRUARY 2003
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
functional block diagram
Write-Control
Logic
RAM Array
8192
×
18 or 16384
×
9
16384
×
18 or 32768
×
9
32768
×
18 or 65536
×
9
65536
×
18 or 131072
×
9
Offset
Register
Input
Register
Flag
Logic
Read Pointer
Read-Control Logic
Output
Register
Write
Pointer
Control
Logic
Reset
Logic
BE
IP
MRS
WEN
WCLK
D0
Dn (
×
9 or
×
18)
SEN
HF
FWFT/SI
PAE
EF/OR
PAF
FF/IR
Q0
Qn (
×
9 or
×
18)
OE
REN
RCLK
Bus
Configuration
IW
OW
PRS
LD
FSEL1
FSEL0
PFM
RM
RT
description (continued)
For applications requiring more data-storage capacity than a single FIFO can provide, the FWFT timing mode
permits depth expansion by chaining FIFOs in series (i.e., the data outputs of one FIFO are connected to the
corresponding data inputs of the next). No external logic is required.
These FIFOs have five flag pins: empty flag or output ready (EF/OR), full flag or input ready (FF/IR), half-full
flag (HF), programmable almost-empty flag (PAE), and programmable almost-full flag (PAF). The IR and OR
functions are selected in FWFT mode. The EF and FF functions are selected in standard mode. HF, PAE, and
PAF always are available for use, regardless of timing mode.
PAE and PAF can be programmed independently to switch at any point in memory. Programmable offsets
determine the flag-switching threshold and can be loaded by parallel or serial methods. Eight default offset
settings also are provided, so that PAE can be set to switch at a predefined number of locations from the empty
boundary. The PAF threshold also can be set at similar predefined values from the full boundary. The default
offset values are set during master reset by the state of FSEL0, FSEL1, and LD.
For serial programming, SEN, together with LD, loads the offset registers via the serial input (SI) on each rising
edge of WCLK. For parallel programming, WEN, together with LD, loads the offset registers via Dn on each
rising edge of WCLK. REN, together with LD, can read the offsets in parallel from Qn on each rising edge of
RCLK, regardless of whether serial or parallel offset loading has been selected.
相关PDF资料
PDF描述
SN74V273-6GGM 8192 】 18, 16384 】 18, 32768 】 18, 65536 】 18 3.3-V CMOS FIRST-IN, FIRST-OUT MEMORIES
SN74V273-7GGM 8192 】 18, 16384 】 18, 32768 】 18, 65536 】 18 3.3-V CMOS FIRST-IN, FIRST-OUT MEMORIES
SN74V283-10GGM 8192 】 18, 16384 】 18, 32768 】 18, 65536 】 18 3.3-V CMOS FIRST-IN, FIRST-OUT MEMORIES
SN74V283-15GGM 8192 】 18, 16384 】 18, 32768 】 18, 65536 】 18 3.3-V CMOS FIRST-IN, FIRST-OUT MEMORIES
SN74V283-6GGM 8192 】 18, 16384 】 18, 32768 】 18, 65536 】 18 3.3-V CMOS FIRST-IN, FIRST-OUT MEMORIES
相关代理商/技术参数
参数描述
SN74V273-15PZA 功能描述:先进先出 16384 x 18 Synch 先进先出 Memory RoHS:否 制造商:IDT 电路数量: 数据总线宽度:18 bit 总线定向:Unidirectional 存储容量:4 Mbit 定时类型:Synchronous 组织:256 K x 18 最大时钟频率:100 MHz 访问时间:10 ns 电源电压-最大:3.6 V 电源电压-最小:6 V 最大工作电流:35 mA 最大工作温度:+ 85 C 封装 / 箱体:TQFP-80 封装:
SN74V273-6GGM 功能描述:先进先出 16384 x 18 Synch 先进先出 Memory RoHS:否 制造商:IDT 电路数量: 数据总线宽度:18 bit 总线定向:Unidirectional 存储容量:4 Mbit 定时类型:Synchronous 组织:256 K x 18 最大时钟频率:100 MHz 访问时间:10 ns 电源电压-最大:3.6 V 电源电压-最小:6 V 最大工作电流:35 mA 最大工作温度:+ 85 C 封装 / 箱体:TQFP-80 封装:
SN74V273-6PZA 功能描述:先进先出 16384 x 18 Synch 先进先出 Memory RoHS:否 制造商:IDT 电路数量: 数据总线宽度:18 bit 总线定向:Unidirectional 存储容量:4 Mbit 定时类型:Synchronous 组织:256 K x 18 最大时钟频率:100 MHz 访问时间:10 ns 电源电压-最大:3.6 V 电源电压-最小:6 V 最大工作电流:35 mA 最大工作温度:+ 85 C 封装 / 箱体:TQFP-80 封装:
SN74V273-7GGM 功能描述:先进先出 16384 x 18 Synch 先进先出 Memory RoHS:否 制造商:IDT 电路数量: 数据总线宽度:18 bit 总线定向:Unidirectional 存储容量:4 Mbit 定时类型:Synchronous 组织:256 K x 18 最大时钟频率:100 MHz 访问时间:10 ns 电源电压-最大:3.6 V 电源电压-最小:6 V 最大工作电流:35 mA 最大工作温度:+ 85 C 封装 / 箱体:TQFP-80 封装:
SN74V273-7PZA 功能描述:先进先出 16384 x 18 Synch 先进先出 Memory RoHS:否 制造商:IDT 电路数量: 数据总线宽度:18 bit 总线定向:Unidirectional 存储容量:4 Mbit 定时类型:Synchronous 组织:256 K x 18 最大时钟频率:100 MHz 访问时间:10 ns 电源电压-最大:3.6 V 电源电压-最小:6 V 最大工作电流:35 mA 最大工作温度:+ 85 C 封装 / 箱体:TQFP-80 封装: