R5F104LEG datasheet(106/213 Pages) RENESAS

106 / 213 page

RL78/G14

2. ELECTRICAL SPECIFICATIONS (TA = -40 to +85

°C)

R01DS0053EJ0330 Rev. 3.30

Page 106 of 208

Aug 12, 2016

Note 1.

Transfer rate in the SNOOZE mode: MAX. 1 Mbps

Note 2.

Use it with EVDD0

≥ Vb.

Note 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.

Note 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.

Note 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 (for the

30- to 52-pin products)/EVDD tolerance (for the 64- to 100-pin products)) mode for the SOp pin by using port input

mode register g (PIMg) and port output mode register g (POMg). For VIH and VIL, see the DC characteristics with

TTL input buffer selected.

CSI mode connection diagram (during communication at different potential)

Remark 1.

Rb[

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

Vb[V]: Communication line voltage

Remark 2.

p: CSI number (p = 00, 01, 10, 20, 30, 31), m: Unit number (m = 0, 1), n: Channel number (n = 0 to 3),

g: PIM and POM number (g = 0, 1, 3 to 5, 14)

Remark 3.

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, 02, 10, 12, 13))

Remark 4.

CSI01 of 48-, 52-, 64-pin products, and CSI11 and CSI21 cannot communicate at different potential. Use other CSI for

communication at different potential.

Also, communication at different potential cannot be performed during clock synchronous serial communication with the

slave select function.

SCKp

SOp

User’s device

SCK

SIp

<Slave>

RL78 microcontroller

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