參數(shù)資料
型號(hào): SC16C654BIB64,128
廠商: NXP Semiconductors
文件頁(yè)數(shù): 6/58頁(yè)
文件大小: 0K
描述: IC QUAD UART 64BYTE 64LQFP
標(biāo)準(zhǔn)包裝: 1,500
特點(diǎn): 故障啟動(dòng)位檢測(cè)
通道數(shù): 4,QUART
FIFO's: 64 字節(jié)
電源電壓: 2.5V,3.3V,5V
帶自動(dòng)流量控制功能:
帶IrDA 編碼器/解碼器:
帶故障啟動(dòng)位檢測(cè)功能:
帶調(diào)制解調(diào)器控制功能:
帶CMOS:
安裝類型: 表面貼裝
封裝/外殼: 64-LQFP
供應(yīng)商設(shè)備封裝: 64-LQFP(10x10)
包裝: 帶卷 (TR)
其它名稱: 935274936128
SC16C654BIB64-F
SC16C654BIB64-F-ND
14
7674F–AVR–09/09
ATmega164P/324P/644P
5.5.1
SPH and SPL – Stack Pointer High and Stack pointer Low
5.6
Instruction Execution Timing
This section describes the general access timing concepts for instruction execution. The AVR
CPU is driven by the CPU clock clk
CPU, directly generated from the selected clock source for the
chip. No internal clock division is used.
Figure 5-4 on page 14 shows the parallel instruction fetches and instruction executions enabled
by the Harvard architecture and the fast-access Register File concept. This is the basic pipelin-
ing concept to obtain up to 1 MIPS per MHz with the corresponding unique results for functions
per cost, functions per clocks, and functions per power-unit.
Figure 5-4.
The Parallel Instruction Fetches and Instruction Executions
Figure 5-5 shows the internal timing concept for the Register File. In a single clock cycle an ALU
operation using two register operands is executed, and the result is stored back to the destina-
tion register.
Bit
151413121110
9
8
SP12
SP11
SP10
SP9
SP8
SPH
SP7
SP6
SP5
SP4
SP3
SP2
SP1
SP0
SPL
765
432
10
Read/Write
R
R/W
Initial Value
0
1
0
111
11
clk
1st Instruction Fetch
1st Instruction Execute
2nd Instruction Fetch
2nd Instruction Execute
3rd Instruction Fetch
3rd Instruction Execute
4th Instruction Fetch
T1
T2
T3
T4
CPU
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SC16C654BIB64-F 功能描述:UART 接口集成電路 16CB 2.5V-5V 4CH UART 64B FIFO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
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