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参数资料
| 型号： | SPEAR-09-P022 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 1 CHANNEL(S), 1000M bps, I2C BUS CONTROLLER, PBGA420 |
| 封装： | 23 X 23 MM, 1.81 MM HEIGHT, ROHS COMPLIANT, PLASTIC, BGA-420 |
| 文件页数： | 9/40页 |
| 文件大小： | 328K |
| 代理商： | SPEAR-09-P022 |
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SPEAR-09-P022
Pin description
DDR I/F
DDR_DATA_15
AA14
I/O
Data lines
(upper byte)
SSTL_2/SSTL_18
DDR_DQS_1
AB17
Differential upper
data strobe
Differential
SSTL_2/SSTL_18
DDR_nDQS_1
AA17
DDR_DM_1
AA15
Output
Upper data mask
SSTL_2/SSTL_18
DDR_GATE_1
Y17
I/O
Upper gate open
DDR_VREF
V10
Input
Reference voltage
Analog
DDR_COMP_2V5
V9
Output
Ext. resistor 2.5 V
Analog
DDR_COMP_GND
V8
-
Common return for ext.
resistors
Power
DDR_COMP_1V8
V7
Output
Ext. resistor 1.8 V
Analog
DDR2_EN
D11
input
Configuration
TTL input buffer
3.3 V tolerant, PU
USB
DEV_DP
V1
I/O
USB device D+
Bidirectional analog
buffer
5 V tolerant
DEV_DM
V2
USB device D-
DEV_VBUS
R4
Input
USB device VBUS
TTL input buffer
3.3 V tolerant, PD
HOST1_DP
T1
I/O
USB HOST1 D+
Bidirectional analog
buffer
5 V tolerant
HOST1_DM
T2
USB HOST1 D-
HOST1_VBUS
P5
Output
USB HOST1 VBUS
TTL output buffer 3.3 V
capable, 4 mA
HOST1_OVRC
P6
Input
USB host1
over-current
TTL input buffer
3.3 V tolerant, PD
HOST2_DP
P1
I/O
USB HOST2 D+
Bidirectional analog
buffer
5 V tolerant
HOST2_DM
P2
USB HOST2 D-
HOST2_VBUS
R5
Output
USB HOST2 VBUS
TTL output buffer 3.3 V
capable, 4 mA
HOST2_OVRC
R6
Input
USB host2
over-current
TTL input buffer
3.3 V tolerant, PD
USB_RREF
U4
Output
Reference resistor
Analog
Master
Clock
MCLK_XI
Y1
Input
30 MHz crystal I
Oscillator
2.5 V capable
MCLK_XO
Y2
Output
30 MHz crystal O
RTC
RTC_XI
A9
Input
32KHz crystal I
Oscillator 1 V capable
RTC_XO
B9
Output
32 KHz crystal O
SMI
SMI_DATAIN
L21
Input
Serial Flash
input data
TTL input buffer
3.3 V tolerant, PU
Table 2.
Pin description by functional group (continued)
Group
Signal name
Ball
Direction
Function
Pin type
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