参数资料
型号: V85C2256164SAS8
厂商: MOSEL-VITELIC
元件分类: DRAM
英文描述: 16M X 16 DDR DRAM, 0.8 ns, PBGA60
封装: 0.80 X 1 MM PITCH, SOC, BGA-60
文件页数: 19/61页
文件大小: 814K
代理商: V85C2256164SAS8
26
V58C2256(804/404/164)S Rev. 1.4 October 2002
MOSEL VITELIC
V58C2256(804/404/164)S
QFC function
when driven low on reads coincident with the start of preamble, this DRAM output signal says that one cy-
cle later there will be the first valid DQS output and returned to HI-Z after this finishing a burst operation. It is
also driven low shortly after a write command is received and returned to HI-Z shortly after the last data strobe
transition is received. Whenever the device is in standby, the signal is HI-Z. DQS is intended to enable an
external data switch. QFC can be enabled or disabled through EMRS control.
QFC timing on Read operation
QFC on reads is enabled coincident with the start of DQS preamble, and disabled coincident with the end
of DQS postamble
Figure 26. QFC timing on read operation
Command
2
01
5
34
8
67
Read
Dout 0
Dout 1
Hi-Z
DQS
DQ’S
QFC
tQPRE
tQPST
CL = 2, BL = 2
CK
相关PDF资料
PDF描述
V85FACCBAFREQ VCXO, CLOCK, 1.5 MHz - 200 MHz, HCMOS OUTPUT
V85GBAAA155.520MHZ VCXO, CLOCK, 155.52 MHz, PECL OUTPUT
V85GAABA001.500MHZ VCXO, CLOCK, 1.5 MHz, PECL OUTPUT
V85GABAA155.520MHZ VCXO, CLOCK, 155.52 MHz, PECL OUTPUT
V85GABAB155.520MHZ VCXO, CLOCK, 155.52 MHz, LVDS OUTPUT
相关代理商/技术参数
参数描述
V85ES00C-GZCY8-1Z1-XPN1 制造商:Carling Technologies 功能描述:V-SERIES ROCKER SWITCH - Bulk
V85MLA1210 制造商:LITTELFUSE 制造商全称:Littelfuse 功能描述:Multilayer Transient Voltage Surge Suppressors
V85MLA1210A 功能描述:压敏电阻 85V 250A 260pF RoHS:否 制造商:EPCOS 产品:MLV 电压额定值 DC:22 V 电压额定值 AC:17 V 钳位电压:50 V 直径: 峰值浪涌电流:30 A 浪涌能量额定值:75 mJ 电容:74.2 pF 工作温度范围:- 55 C to + 125 C 安装:SMD/SMT 封装:Reel
V85MLA1210H 功能描述:压敏电阻 85V 250A 260pF RoHS:否 制造商:EPCOS 产品:MLV 电压额定值 DC:22 V 电压额定值 AC:17 V 钳位电压:50 V 直径: 峰值浪涌电流:30 A 浪涌能量额定值:75 mJ 电容:74.2 pF 工作温度范围:- 55 C to + 125 C 安装:SMD/SMT 封装:Reel
V85MLA1210H 制造商:Littelfuse 功能描述:Metal Oxide Varistor (MOV)