參數(shù)資料
型號： XRM48L950PGET
廠商： Texas Instruments
文件頁數(shù)： 167/176頁
文件大?。?/td> 0K
描述： MCU 16/32Bit FLASH 3MB 144LQFP
標(biāo)準(zhǔn)包裝： 1
系列： Hercules™ ARM® RM4x
應(yīng)用： 工業(yè)安全，醫(yī)療
核心處理器： ARM? Cortex? - R4F
程序存儲器類型： 閃存（3MB）
控制器系列： RM4
RAM 容量： 256K x 8
接口： CAN，以太網(wǎng)，I²C，LIN，MibSPI，SCI，SPI，USB
輸入/輸出數(shù)： 64
電源電壓： 1.14 V ~ 3.6 V
工作溫度： -40°C ~ 105°C
安裝類型： 表面貼裝
封裝/外殼： 144-LQFP
包裝： 托盤
供應(yīng)商設(shè)備封裝： 144-LQFP（20x20）
其它名稱： 296-29389
EMIF_nCS[3:2]
25
Asserted
2
EMIF_BA[1:0]
EMIF_ADDR[21:0]
EMIF_DATA[15:0]
EMIF_nWE
EMIF_WAIT
SETUP
Extended Due to EMIF_WAIT
28
Deasserted
STROBE
STROBE HOLD
SPNS174A – APRIL 2012 – REVISED SEPTEMBER 2013
Figure 4-14. EMIFnWAIT Write Timing Requirements
Table 4-27. EMIF Asynchronous Memory Timing Requirements
NO.
Value
Unit
MIN
NOM
MAX
Reads and Writes
E
EMIF clock period
10
ns
2
tw(EM_WAIT)
Pulse duration, EMIFnWAIT
2E
ns
assertion and deassertion
Reads
12
tsu(EMDV-EMOEH)
Setup time, EMIFDATA[15:0]
30
ns
valid before EMIFnOE high
13
th(EMOEH-EMDIV)
Hold time, EMIFDATA[15:0]
0.5
ns
valid after EMIFnOE high
14
tsu(EMOEL-EMWAIT)
Setup Time, EMIFnWAIT
4E+30
ns
asserted before end of Strobe
Phase(1)
Writes
28
tsu(EMWEL-EMWAIT)
Setup Time, EMIFnWAIT
4E+30
ns
asserted before end of Strobe
Phase(1)
(1)
Setup before end of STROBE phase (if no extended wait states are inserted) by which EMIFnWAIT must be asserted to add extended
wait states. Figure Figure 4-12 and Figure Figure 4-14 describe EMIF transactions that include extended wait states inserted during the
STROBE phase. However, cycles inserted as part of this extended wait period should not be counted; the 4E requirement is to the start
of where the HOLD phase would begin if there were no extended wait cycles.
Table 4-28. EMIF Asynchronous Memory Switching Characteristics(1)(2)(3)
NO
Parameter
Value
Unit
MIN
NOM
MAX
Reads and Writes
1
td(TURNAROUND)
Turn around time
(TA)*E - 4
(TA)*E
(TA)*E + 3
ns
(1)
TA = Turn around, RS = Read setup, RST = Read strobe, RH = Read hold, WS = Write setup, WST = Write strobe, WH = Write hold,
MEWC = Maximum external wait cycles. These parameters are programmed via the Asynchronous Bank and Asynchronous Wait Cycle
Configuration Registers. These support the following ranges of values: TA[4–1], RS[16–1], RST[64–1], RH[8–1], WS[16–1], WST[64–1],
WH[8–1], and MEWC[1–256]. See the RM48x Technical Reference Manual (SPNU503) for more information.
(2)
E = EMIF_CLK period in ns.
(3)
EWC = external wait cycles determined by EMIFnWAIT input signal. EWC supports the following range of values. EWC[256–1]. Note
that the maximum wait time before timeout is specified by bit field MEWC in the Asynchronous Wait Cycle Configuration Register. See
the RM48x Technical Reference Manual (SPNU503) for more information.
90
System Information and Electrical Specifications
Copyright 2012–2013, Texas Instruments Incorporated
Product Folder Links: RM48L950 RM48L750 RM48L550
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XRM48L950ZWTT 功能描述:ARM微控制器 - MCU HERCULES MCU RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:72 MHz 程序存儲器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT
XRM48L952PGET 功能描述:ARM微控制器 - MCU 16/32B RISC Fl. MCU RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:72 MHz 程序存儲器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT
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