參數(shù)資料
型號(hào): SN74V3680-10PEU
廠商: Texas Instruments, Inc.
英文描述: 3.3-V CMOS FIRST-IN, FIRST-OUT MEMORIES
中文描述: 的3.3V的CMOS先入先出存儲(chǔ)器
文件頁(yè)數(shù): 22/50頁(yè)
文件大?。?/td> 729K
代理商: SN74V3680-10PEU
SN74V3640, SN74V3650, SN74V3660, SN74V3670, SN74V3680, SN74V3690
1024
×
36, 2048
×
36, 4096
×
36, 8192
×
36, 16384
×
36, 32768
×
36
3.3-V CMOS FIRST-IN, FIRST-OUT MEMORIES
SCAS668A
NOVEMBER 2001
REVISED MARCH 2003
22
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
1st Parallel Offset Write/Read Cycle
D/Q8
D/Q0
EMPTY OFFSET REGISTER (PAE) BIT LOCATIONS
X
8
7
6
5
4
3
2
1
2nd Parallel Offset Write/Read Cycle
D/Q8
D/Q0
EMPTY OFFSET REGISTER (PAE) BIT LOCATIONS
X
16
15
14
13
12
11
10
9
3rd Parallel Offset Write/Read Cycle
D/Q8
D/Q0
FULL OFFSET REGISTER (PAF) BIT LOCATIONS
8
7
6
5
X
4
3
2
1
4th Parallel Offset Write/Read Cycle
D/Q8
D/Q0
FULL OFFSET REGISTER (PAF) BIT LOCATIONS
16
15
14
13
X
12
11
10
9
×
9 Bus Width
Number of bits used:
10 bits for the SN74V3640
11 bits for the SN74V3650
12 bits for the SN74V3660
13 bits for the SN74V3670
14 bits for the SN74V3680
15 bits for the SN74V3690
Note: All unused bits of the
LSB and MSB are don
t care.
Figure 3. Programmable Flag Offset Programming Sequence (Continued)
serial programming mode
If the serial programming mode has been selected as described previously, programming of PAE and PAF
values can be achieved by using a combination of the LD, SEN, WCLK, and SI inputs. Programming PAE and
PAF proceeds as follows. When LD and SEN are set low, data on the SI input are written, one bit for each WCLK
rising edge, starting with the empty offset LSB and ending with the full offset MSB. This makes a total of 20 bits
for the SN74V3640, 22 bits for the SN74V3650, 24 bits for the SN74V3660, 26 bits for the SN74V3670, 28 bits
for the SN74V3680, and 30 bits for the SN74V3690.
See Figure 15 for the timing information.
Using the serial method, individual registers cannot be programmed selectively. PAE and PAF can show a valid
status only after the complete set of bits (for all offset registers) has been entered. The registers can be
reprogrammed, as long as the complete set of new offset bits is entered. When LD is low and SEN is high, no
serial write to the registers can occur.
相關(guān)PDF資料
PDF描述
SN74V3640-10PEU 3.3-V CMOS FIRST-IN, FIRST-OUT MEMORIES
SN74V3640-15PEU 3.3-V CMOS FIRST-IN, FIRST-OUT MEMORIES
SN74V3650-10PEU 3.3-V CMOS FIRST-IN, FIRST-OUT MEMORIES
SN74V3650-15PEU 3.3-V CMOS FIRST-IN, FIRST-OUT MEMORIES
SN74V3650-6PEU 3.3-V CMOS FIRST-IN, FIRST-OUT MEMORIES
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參數(shù)描述
SN74V3680-15PEU 功能描述:先進(jìn)先出 16384 x 36 Synch 先進(jìn)先出 Memory RoHS:否 制造商:IDT 電路數(shù)量: 數(shù)據(jù)總線(xiàn)寬度:18 bit 總線(xiàn)定向:Unidirectional 存儲(chǔ)容量:4 Mbit 定時(shí)類(lèi)型:Synchronous 組織:256 K x 18 最大時(shí)鐘頻率:100 MHz 訪(fǎng)問(wèn)時(shí)間:10 ns 電源電壓-最大:3.6 V 電源電壓-最小:6 V 最大工作電流:35 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-80 封裝:
SN74V3680-6PEU 功能描述:先進(jìn)先出 16384 x 36 Synch 先進(jìn)先出 Memory RoHS:否 制造商:IDT 電路數(shù)量: 數(shù)據(jù)總線(xiàn)寬度:18 bit 總線(xiàn)定向:Unidirectional 存儲(chǔ)容量:4 Mbit 定時(shí)類(lèi)型:Synchronous 組織:256 K x 18 最大時(shí)鐘頻率:100 MHz 訪(fǎng)問(wèn)時(shí)間:10 ns 電源電壓-最大:3.6 V 電源電壓-最小:6 V 最大工作電流:35 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-80 封裝:
SN74V3680-7PEU 功能描述:先進(jìn)先出 16384 x 36 Synch 先進(jìn)先出 Memory RoHS:否 制造商:IDT 電路數(shù)量: 數(shù)據(jù)總線(xiàn)寬度:18 bit 總線(xiàn)定向:Unidirectional 存儲(chǔ)容量:4 Mbit 定時(shí)類(lèi)型:Synchronous 組織:256 K x 18 最大時(shí)鐘頻率:100 MHz 訪(fǎng)問(wèn)時(shí)間:10 ns 電源電壓-最大:3.6 V 電源電壓-最小:6 V 最大工作電流:35 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-80 封裝:
SN74V3690-10PEU 功能描述:先進(jìn)先出 32768 x 36 Synch 先進(jìn)先出 Memory RoHS:否 制造商:IDT 電路數(shù)量: 數(shù)據(jù)總線(xiàn)寬度:18 bit 總線(xiàn)定向:Unidirectional 存儲(chǔ)容量:4 Mbit 定時(shí)類(lèi)型:Synchronous 組織:256 K x 18 最大時(shí)鐘頻率:100 MHz 訪(fǎng)問(wèn)時(shí)間:10 ns 電源電壓-最大:3.6 V 電源電壓-最小:6 V 最大工作電流:35 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-80 封裝:
SN74V3690-15PEU 功能描述:先進(jìn)先出 32768 x 36 Synch 先進(jìn)先出 Memory RoHS:否 制造商:IDT 電路數(shù)量: 數(shù)據(jù)總線(xiàn)寬度:18 bit 總線(xiàn)定向:Unidirectional 存儲(chǔ)容量:4 Mbit 定時(shí)類(lèi)型:Synchronous 組織:256 K x 18 最大時(shí)鐘頻率:100 MHz 訪(fǎng)問(wèn)時(shí)間:10 ns 電源電壓-最大:3.6 V 電源電壓-最小:6 V 最大工作電流:35 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-80 封裝: