CC2564C Datasheet, PDF (14/52 Pages) Texas Instruments – CC2564C Dual-Mode Bluetooth Controller

CC2564C
SWRS199A – APRIL 2016 – REVISED NOVEMBER 2016
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5.8.1.4 I/O States in Various Power Modes
CAUTION
Some device I/Os are not fail-safe (see Section 4.1.1). Fail-safe means that the
pins do not draw current from an external voltage applied to the pin when I/O
power is not supplied to the device. External voltages are not allowed on these
I/O pins when the I/O supply voltage is not supplied because of possible
damage to the device.
Table 5-2 lists the I/O states in various power modes.
Table 5-2. I/O States in Various Power Modes
I/O NAME
SHUTDOWN ⁽¹⁾
I/O State
Pull
DEFAULT ACTIVE⁽¹⁾
I/O State
Pull
HCI_RX
Z
PU
I
PU
HCI_TX
Z
PU
O-H
HCI_RTS
Z
PU
O-H
HCI_CTS
Z
PU
I
PU
AUD_CLK
Z
PD
I
PD
AUD_FSYNC
Z
PD
I
PD
AUD_IN
Z
PD
I
PD
AUD_OUT
Z
PD
Z
PD
TX_DBG
Z
PU
O
(1) I = input, O = output, Z = Hi-Z, – = no pull, PU = pullup, PD = pulldown, H = high, L = low
DEEP SLEEP⁽¹⁾
I/O State
Pull
I
PU
O
O
I
PU
I
PD
I
PD
I
PD
Z
PD
5.8.1.5 nSHUTD Requirements
PARAMETER
V_IH
Operation mode level ⁽¹⁾
V_IL
Shutdown mode level ⁽¹⁾
Minimum time for nSHUT_DOWN low to reset the device
t_r and t_f
Rise and fall times
(1) An internal pulldown retains shutdown mode when no external signal is applied to this pin.
MIN
MAX
UNIT
1.42
1.98
V
0
0.4
V
5
ms
20
µs
14
Specifications
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