FM38DXXSAX - xxFx
Contents
Mode Register 3 (MR3) -------------------------------------------------------------------------------------------------------------------------------------------- 134
MULTIPURPOSE REGISTER (MPR) -----------------------------------------------------------------------------------------------------------------------134
MPR Functional Description ---------------------------------------------------------------------------------------------------------------------------------135
MPR Register Address Definitions and Bursting Order --------------------------------------------------------------------------------------------136
MPR Read Predefined Pattern ------------------------------------------------------------------------------------------------------------------------------141
MODE REGISTER SET (MRS) Command --------------------------------------------------------------------------------------------------------------------141
ZQ CALIBRATION Operation ------------------------------------------------------------------------------------------------------------------------------------142
ACTIVATE Operation -----------------------------------------------------------------------------------------------------------------------------------------------143
READ Operation -----------------------------------------------------------------------------------------------------------------------------------------------------144
WRITE Operation ----------------------------------------------------------------------------------------------------------------------------------------------------155
DQ Input Timing -------------------------------------------------------------------------------------------------------------------------------------------------163
PRECHARGE Operation ------------------------------------------------------------------------------------------------------------------------------------------ 164
SELF REFRESH Operation -------------------------------------------------------------------------------------------------------------------------------------- 164
Extended Temperature Usage --------------------------------------------------------------------------------------------------------------------------------- 166
Power-Down Mode ------------------------------------------------------------------------------------------------------------------------------------------------- 167
RESET Operation --------------------------------------------------------------------------------------------------------------------------------------------------- 175
On-Die Termination (ODT) --------------------------------------------------------------------------------------------------------------------------------------- 176
Functional Representation of ODT ------------------------------------------------------------------------------------------------------------------------176
Nominal ODT ------------------------------------------------------------------------------------------------------------------------------------------------------176
Dynamic ODT ---------------------------------------------------------------------------------------------------------------------------------------------------------178
Dynamic ODT Special Use Case ---------------------------------------------------------------------------------------------------------------------------178
Functional Description ----------------------------------------------------------------------------------------------------------------------------------------178
Synchronous ODT Mode ------------------------------------------------------------------------------------------------------------------------------------------184
ODT Latency and Posted ODT ------------------------------------------------------------------------------------------------------------------------------184
Timing Parameters ----------------------------------------------------------------------------------------------------------------------------------------------184
ODT Off During READs ----------------------------------------------------------------------------------------------------------------------------------------187
Asynchronous ODT Mode ----------------------------------------------------------------------------------------------------------------------------------------189
Synchronous to Asynchronous ODT Mode Transition (Power-Down Entry) ---------------------------------------------------------------191
Asynchronous to Synchronous ODT Mode Transition (Power-Down Exit) ----------------------------------------------------------------------193
Asynchronous to Synchronous ODT Mode Transition (Short CKE Pulse) ------------------------------------------------------------------195
Selection Guide ------------------------------------------------------------------------------------------------------------------------------------------------------197
Part Numbering System -------------------------------------------------------------------------------------------------------------------------------------------198
5
Rev. 0.2 Feb. ‘17
5秒后页面跳转
NTC热敏电阻与PTC热敏电阻的应用原理及应用范围
GTO与普通晶闸管相比为什么可以自关断？为什么普通晶闸管不能呢？从GTO原理、应用范围带你了解原因及推荐型号
LF353数据手册解读：特性、应用、封装、引脚说明、电气参数及替换型号推荐
A4950资料手册解读：特性、应用、封装、引脚功能、电气参数及代换型号
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
