AT91SAM7SE32(2008) 查看數據表（PDF） - Atmel Corporation
零件编号
产品描述 (功能)
生产厂家
AT91SAM7SE32 Datasheet PDF : 47 Pages
| |||
6.5 SDCK Pin
The SDCK pin is dedicated to the SDRAM Clock and is an output-only without pull-up. Maximum
Output Frequency of this pad is 48 MHz at 3.0V and 25 MHz at 1.65V with a maximum load of
30 pF.
6.6 PIO Controller lines
All the I/O lines PA0 to PA31, PB0 to PB31, PC0 to PC23 integrate a programmable pull-up
resistor. Programming of this pull-up resistor is performed independently for each I/O line
through the PIO controllers.
Typical pull-up value is 100 kΩ.
All the I/O lines have schmitt trigger inputs.
6.7 I/O Lines Current Drawing
The PIO lines PA0 to PA3 are high-drive current capable. Each of these I/O lines can drive up to
16 mA permanently.
The remaining I/O lines can draw only 8 mA.
However, the total current drawn by all the I/O lines cannot exceed 300 mA.
16 AT91SAM7SE512/256/32 Preliminary
6222ES–ATARM–04-Jan-08
Share Link: 