R5F10RF8AFP datasheet(51/76 Pages) RENESAS

51 / 76 page

RL78/L12

2. ELECTRICAL SPECIFICATIONS (TARGET)

Page 51 of 73

R01DS0157EJ0001 Rev.0.01

2012.02.20

Under development

Preliminary document

Specifications in this document are tentative and subject to change.

Caution

The pins mounted depend on the product.

Refer to 1.3.1

32-pin products to 1.3.5

64-pin

products.

CSI mode connection diagram (during communication at different potential)

User's device

<Slave>

SCKp

SOp

SCK

SIp

RL78/L12

Notes 1. Transfer rate in the SNOOZE mode : MAX. 1 Mbps

2. Use it with EVDD

≥ Vb.

3. When DAPmn = 0 and CKPmn = 0, or DAPmn = 1 and CKPmn = 1.

The SIp setup time becomes “to

SCKp

↓” when DAPmn = 0 and CKPmn = 1, or DAPmn = 1 and CKPmn = 0.

4. When DAPmn = 0 and CKPmn = 0, or DAPmn = 1 and CKPmn = 1.

The SIp hold time becomes “from

SCKp

↓” when DAPmn = 0 and CKPmn = 1, or DAPmn = 1 and CKPmn = 0.

5. When DAPmn = 0 and CKPmn = 0, or DAPmn = 1 and CKPmn = 1.

The delay time to SOp output

becomes “from SCKp

↑” when DAPmn = 0 and CKPmn = 1, or DAPmn = 1 and CKPmn = 0.

Caution

Select the TTL input buffer for the SIp pin and SCKp pin and the N-ch open drain output (VDD

tolerance) mode for the SOp pin by using port input mode register g (PIMg) and port output mode

Remarks 1. Rb[

Ω]:Communication line (SOp) pull-up resistance, Cb[F]: Communication line (SOp) load

capacitance, Vb[V]: Communication line voltage

2. p: CSI number (p = 00, 01), m: Unit number (m = 0), n: Channel number (n = 0, 1),

g: PIM and POM number (g = 1)

fMCK: Serial array unit operation clock frequency

(Operation clock to be set by the CKSmn bit of serial mode register mn (SMRmn).

m: Unit number, n: Channel number (mn = 00, 01))

4. VIH and VIL below are observation points for the AC characteristics of the serial array unit when

communicating at different potentials in CSI mode.

4.0 V

≤ EVDD ≤ 5.5 V, 2.7 V ≤ Vb ≤ 4.0 V: VIH = 2.2 V, VIL = 0.8 V

2.7 V

≤ EVDD < 4.0 V, 2.3 V ≤ Vb ≤ 2.7 V: VIH = 2.0 V, VIL = 0.5 V

1.8 V

≤ EVDD < 3.3 V, 1.6 V ≤ Vb ≤ 2.0 V: VIH = 1.50 V, VIL = 0.32 V

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