参数资料
型号: LPC11U23FBD48/301,
厂商: NXP Semiconductors
文件页数: 43/74页
文件大小: 0K
描述: MCU USB 48LQFP
产品培训模块: Code Density for LPC11xx
标准包装: 250
系列: LPC11Uxx
核心处理器: ARM? Cortex?-M0
芯体尺寸: 32-位
速度: 50MHz
连通性: I²C,Microwire,SPI,SSI,SSP,UART/USART,USB
外围设备: 欠压检测/复位,POR,WDT
输入/输出数: 40
程序存储器容量: 24KB(24K x 8)
程序存储器类型: 闪存
EEPROM 大小: 1K x 8
RAM 容量: 8K x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 3.6 V
数据转换器: A/D 8x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 48-LQFP
包装: 托盘
其它名称: 568-8520
LPC11U23FBD48/301,-ND
LPC11U2X
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2014. All rights reserved.
Product data sheet
Rev. 2.2 — 11 March 2014
48 of 74
NXP Semiconductors
LPC11U2x
32-bit ARM Cortex-M0 microcontroller
10.6 SSP interface
[1]
Tcy(clk) = (SSPCLKDIV (1 + SCR) CPSDVSR) / fmain. The clock cycle time derived from the SPI bit rate Tcy(clk) is a function of the
main clock frequency fmain, the SPI peripheral clock divider (SSPCLKDIV), the SPI SCR parameter (specified in the SSP0CR0 register),
and the SPI CPSDVSR parameter (specified in the SPI clock prescale register).
[2]
Tamb = 40 C to 85 C.
[3]
Tcy(clk) = 12 Tcy(PCLK).
[4]
Tamb = 25 C; for normal voltage supply range: VDD = 3.3 V.
Table 16.
Dynamic characteristics of SPI pins in SPI mode
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
SPI master (in SPI mode)
Tcy(clk)
clock cycle time
full-duplex mode
50
-
ns
when only transmitting [1]
40
ns
tDS
data set-up time
in SPI mode
2.4 V
V
DD 3.6 V
15
-
ns
2.0 V
V
DD < 2.4 V
20
ns
1.8 V
V
DD < 2.0 V
24
-
ns
tDH
data hold time
in SPI mode
0-
-
ns
tv(Q)
data output valid time in SPI mode
--
10
ns
th(Q)
data output hold time in SPI mode
0-
-
ns
SPI slave (in SPI mode)
Tcy(PCLK)
PCLK cycle time
20
-
ns
tDS
data set-up time
in SPI mode
0-
-
ns
tDH
data hold time
in SPI mode
3
T
cy(PCLK) + 4
-
ns
tv(Q)
data output valid time in SPI mode
--
3
T
cy(PCLK) + 11
ns
th(Q)
data output hold time in SPI mode
--
2
T
cy(PCLK) + 5
ns
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