SM470R1B1M-HT Datasheet, PDF (47/67 Pages) Texas Instruments – 16/32-BIT RISC FLASH MICROCONTROLLER

SM470R1B1M-HT
www.ti.com
INPUT TIMINGS
SPNS155F – SEPTEMBER 2009 – REVISED AUGUST 2012
Timing Requirements for Input Timings⁽¹⁾⁽²⁾
(see Figure 14)
t_pw
Input minimum pulse width
(1) Not production tested.
(2) t_c(ICLK) = interface clock cycle time = 1/f_(ICLK)
Input
80%
t_pw
80%
MIN
t_c(ICLK) + 10
MAX UNIT
ns
V_CC
20%
20% ₀
Figure 14. CMOS-Level Inputs
FLASH TIMINGS
Timing Requirements for Program Flash⁽¹⁾⁽²⁾
t_prog(16-bit)
t_prog(Total)
t_{erase(sector)}
t_wec
t_fp(RST)
t_fp(SLEEP)
t_fp(STANDBY)
Half word (16-bit) programming time
1M-byte programming time⁽³⁾
Sector erase time, T_A = –40°C to 150°C
Write/erase cycles at T_A = –40°C to 85°C
Flash pump settling time from RST to SLEEP
Initial flash pump settling time from SLEEP to STANDBY
Initial flash pump settling time from STANDBY to ACTIVE
MIN
4
50000
TYP
16
8
1.7
167t_c(SYS)
167t_c(SYS)
84t_c(SYS)
(1) Not production tested.
(2) For more detailed information on the flash core sectors, see the flash program and erase section of this data sheet.
(3) The 1M-byte programming time includes overhead of state machine.
MAX
200
32
UNIT
µs
s
s
cycles
ns
ns
ns
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