BCLK max frequency: 55.296 MHz Operating conditions: SRAM timing parameters " />
參數(shù)資料
型號(hào): NS7520B-1-I55
廠商: Digi International
文件頁(yè)數(shù): 28/68頁(yè)
文件大?。?/td> 0K
描述: IC ARM MICROPROCESSOR 177BGA
標(biāo)準(zhǔn)包裝: 160
系列: NET+ARM®
應(yīng)用: 網(wǎng)絡(luò)處理器
核心處理器: ARM7
程序存儲(chǔ)器類型: 外部程序存儲(chǔ)器
RAM 容量: 外部
接口: EBI/EMI,以太網(wǎng),DMA,SPI,UART
輸入/輸出數(shù): 16
電源電壓: 1.4 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 177-LFBGA
包裝: 托盤(pán)
供應(yīng)商設(shè)備封裝: 177-BGA(13x13)
SRAM timing
30
NS 75 20 Da ta shee t
03 /2 00 6
SRAM timing
BCLK max frequency: 55.296 MHz
Operating conditions:
SRAM timing parameters
Temperature:
-15.00 (min)
110.00 (max)
Voltage:
1.60 (min)
1.40 (max)
Output load:
25.0pf
Input drive:
CMOS buffer
Num
Description
Min
Max
Unit
36
BCLK high to BE* valid
15.5
ns
6
BCLK high to address valid
5
13.5
ns
9
BCLK high to data out valid
14
ns
13
BCLK high to data out high impedance
13
ns
10
Data in valid to BCLK high (setup)
5
ns
11
BCLK high to data in invalid (hold)
3
ns
14
TA* valid to BCLK high (setup)
5
ns
15
BCLK high to TA* invalid (hold)
3
ns
27
BCLK high to CS* valid
12.5
ns
28
BCLK low to OE* valid
12.5
ns
29
BCLK low to WE* valid
13
ns
30
BCLK high to TA* valid
13.5
ns
31
BCLK high to TEA* valid
16
ns
18
BCLK low to A27 (CS0OE*) valid
13.5
ns
19
BCLK low A26 (CS0WE*) valid
13.5
ns
12
BCLK high to RW* valid
13.5
ns
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