NHPXA270C5C416 Intel, NHPXA270C5C416 Datasheet - Page 98

• Manufacturer Part Number: NHPXA270C5C416
• Description: IC MPU 32BIT 416MHZ 356-PBGA
• Manufacturer: Intel

Specifications of NHPXA270C5C416

• Processor Type: XScale®
• Speed: 416MHz
• Voltage: 1.35V
• Mounting Type: Surface Mount
• Package / Case: 356-PBGA
• For Use With: 460-3472 - KIT DEV ZOOM STARTER FOR PXA270
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Other names: 868460

Intel® PXA270 Processor
AC Timing Specifications
6-34
Symbols
tsramAS
tsramAH
tsramASW
tsramCES
tsramCEH
tsramWL
tsramDSWH
tsramDH
tramCD
NOTES:
1. Numbers shown as integer multiples of the CLK_MEM period are ideal. Actual numbers vary with pin-to-pin differences in
2. On the first data beat of burst transfer, the tsramASW is 3 CLK_MEM periods. On subsequent data beats, the tsramASW is 1
loading and transition direction (rise or fall).
CLK_MEM period.
Table 6-19. SRAM Write AC Specification
Note:
During writes, data pins are actively driven by the processor and are not three-stated, regardless of
the states of the individual DQM signals. For SRAM writes, the DQM signals are used as byte
enables.
Table 6-19
PXA27x Processor Family Developer’s Manual for register configurations for more information on
these items.
Parameters
Address setup to nCS assert
Address hold from nWE de-asserted
Address setup to nWE asserted
nCS setup to nWE asserted
nCS hold from nWE de-asserted
nWE asserted time
MD/DQM setup to nWE de-asserted
MD/DQM hold from nWE de-
asserted
nCS de-asserted after a read to next
nCS or nSDCS asserted (minimum)
lists programmable register items. See the “Memory Controller”chapter in the Intel®
MIN
1
1
1
2
1
1
2
1
1
Electrical, Mechanical, and Thermal Specification
MSCx[RRR]*2+
MSCx[RDN]+1
MSCx[RDN]+2
TYP
—
—
—
—
—
—
1
MAX
31
32
15
1
1
3
2
1
1
clk_mem
clk_mem
clk_mem
clk_mem
clk_mem
clk_mem
clk_mem
clk_mem
clk_mem
Units
1
Notes
—
—
—
—
—
—
—
—
2