參數(shù)資料
型號(hào): EM773FHN33,551
廠商: NXP Semiconductors
文件頁(yè)數(shù): 28/51頁(yè)
文件大?。?/td> 0K
描述: IC ENERGY METER ARM 32VQFN
其它有關(guān)文件: EM773 Energy Metering IC Training
特色產(chǎn)品: EM773 Energy Metering IC
標(biāo)準(zhǔn)包裝: 260
核心處理器: ARM? Cortex?-M0
芯體尺寸: 32-位
速度: 48MHz
連通性: I²C,SPI,UART/USART
外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,POR,WDT
輸入/輸出數(shù): 25
程序存儲(chǔ)器容量: 32KB(32K x 8)
程序存儲(chǔ)器類(lèi)型: 閃存
RAM 容量: 8K x 8
電壓 - 電源 (Vcc/Vdd): 1.8 V ~ 3.6 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 32-VQFN 裸露焊盤(pán)
包裝: 托盤(pán)
配用: 568-6681-ND - BOARD EVAL EM773 METER EU PLUG
568-6680-ND - BOARD EVAL EM773 METER US PLUG
其它名稱(chēng): 568-5213
EM773
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 2 — 3 January 2012
34 of 51
NXP Semiconductors
EM773
Energy metering IC
10.3 External clock
[1]
Parameters are valid over operating temperature range unless otherwise specified.
[2]
Typical ratings are not guaranteed. The values listed are at room temperature (25
C), nominal supply
voltages.
Table 9.
Dynamic characteristic: external clock
Tamb = 40 C to +85 C; VDD over specified ranges.[1]
Symbol
Parameter
Conditions
Min
Typ[2]
Max
Unit
fosc
oscillator frequency
1
-
25
MHz
Tcy(clk)
clock cycle time
40
-
1000
ns
tCHCX
clock HIGH time
Tcy(clk) 0.4
--ns
tCLCX
clock LOW time
Tcy(clk) 0.4
--ns
tCLCH
clock rise time
-
5
ns
tCHCL
clock fall time
-
5
ns
Fig 17. External clock timing (with an amplitude of at least Vi(RMS) = 200 mV)
tCHCL
tCLCX
tCHCX
Tcy(clk)
tCLCH
002aaa907
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