Datasheet

Table Of Contents
Electrical Characteristics
33-18 Freescale Semiconductor
Figure 33-7 shows an SDRAM write cycle.
Figure 33-7. SDRAM Write Cycle
33.10 General Purpose I/O Timing
Table 33-17. GPIO Timing
1,
2
(V
DD
= 2.7 to 3.6 V, V
SS
= 0 V, V
DDH
= 5 V)
NUM Characteristic Symbol Min Max Unit
G1
G2
CLKOUT High to GPIO Output Valid t
CHPOV
—12ns
CLKOUT High to GPIO Output Invalid t
CHPOI
2—ns
G3
G4
GPIO Input Valid to CLKOUT High t
PVCH
10 ns
CLKOUT High to GPIO Input Invalid t
CHPI
2—ns
G1a
G2a
CLKOUT High to PQA/PQB Output Valid t
CHPAOV
—12ns
CLKOUT High to PQA/PQB Output Invalid t
CHPAOI
2—ns
G3a
G4a
PQA/PQB Input Valid to CLKOUT Low t
PAVCH
10 ns
CLKOUT Low to PQA/PQB Input Invalid t
CHPAI
2—ns
A[23:0]
SRAS
SCAS
1
D[31:0]
ACTV PALLNOP
SDRAM_CS[1:0]
WRITE
Row
Column
CLKOUT
DRAMW
BS[3:0]
D1
D2
D4
D8
D4
0 1 2 3 4 5 6 7 8 9 10 11 12
D7
NOP
1
DACR[CASL] = 2
D4
D3
D2
D4
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3