Datasheet

Rev. 3.00, 03/04, page 445 of 830
Table 15.3 I
2
C bus Transfer Rate (2)
• TCSS = 1
STCR/ ICMR
IICX3 Bit 5 Bit 4 Bit 3
Transfer Rate (MHz)
IICXn CKS2 CKS1 CKS0
Clock
φ = 5
MHz
φ = 8
MHz
φ = 10
MHz
φ = 16
MHz
φ = 20
MHz
φ = 25
MHz
φ = 33
MHz
0 0 0 0 φ/56 89.3 142.9 178.6 285.7 357.1 446.4* 589.3*
1 φ/80 62.5 100.0 125.0 200.0 250.0 312.5 412.5*
1 0 φ/96 52.1 83.3 104.2 166.7 208.3 260.4 343.8
1 φ/128 39.1 62.5 78.1 125.0 156.3 195.3 257.8
1 0 0 φ/160 31.3 50.0 62.5 100.0 125.0 156.3 206.3
1 φ/200 25.0 40.0 50.0 80.0 100.0 125.0 165.0
1 0 φ/224 22.3 35.7 44.6 71.4 89.3 111.6 147.3
1 φ/256 19.5 31.3 39.1 62.5 78.1 97.7 128.9
1 0 0 0 φ/112 44.6 71.4 89.3 142.9 178.6 223.2 294.6
1 φ/160 31.3 50.0 62.5 100.0 125.0 156.3 206.3
1 0 φ/190 26.0 41.7 52.1 83.3 104.2 130.2 171.9
1 φ/256 19.5 31.3 39.1 62.5 78.1 97.7 128.9
1 0 0 φ/320 15.6 25.0 31.3 50.0 62.5 78.1 103.1
1 φ/400 12.5 20.0 25.0 40.0 50.0 62.5 82.5
1 0 φ/448 11.2 17.9 22.3 35.7 44.6 55.8 73.7
1 φ/512 9.8 15.6 19.5 31.3 39.1 48.8 64.5
Note: * The correct operation cannot be guaranteed since the value is outside the I
2
C bus
interface specifications (high-speed mode: max. 400 kHz)
(n = 0 to 5)