SNAA410 July   2024 CDCDB2000 , LMKDB1108 , LMKDB1120 , LMKDB1204

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Introduction
  5. 2 RC19020 vs. LMKDB1120 Comparison
    1. 2.1 RC19020 vs. LMKDB1120 Pin Comparison
    2. 2.2 RC19020 vs. LMKDB1120 Exposed Registers Comparison
  6. 3 9QXL2001B vs. LMKDB1120 Comparison
    1. 3.1 9QXL2001B vs. LMKDB1120 Pin Comparison
    2. 3.2 9QXL2001B vs. LMKDB1120 Exposed Register Comparison
  7. 4 9QXL2001C vs. LMKDB1120 Comparison
    1. 4.1 9QXL2001C vs. LMKDB1120 Pin Comparison
    2. 4.2 9QXL2001C vs. LMKDB1120 Exposed Registers Comparison
  8. 5 CDCDB2000 vs. LMKDB1120 Comparison
  9. 6 RC19008 vs. LMKDB1108 Comparison
    1. 6.1 RC19008 vs. LMKDB1108 Pin Comparison
    2. 6.2 RC19008 vs. LMKDB1108 Exposed Registers Comparison
  10. 7 RC19004 vs. LMKDB1104 Comparison
    1. 7.1 RC19004 vs. LMKDB1104 Pin Comparison
    2. 7.2 RC19004 vs. LMKDB1104 Exposed Register Comparison
  11. 8 RC19204 vs. LMKDB1204 Comparison
    1. 8.1 RC19204 vs. LMKDB1204 Pin Comparison
    2. 8.2 RC19204 vs. LMKDB1204 Exposed Register Comparison
  12. 9 RC19202 vs. LMKDB1202 Comparison
    1. 9.1 RC19202 vs. LMKDB1202 Pin Comparison
    2. 9.2 RC19202 vs. LMKDB1202 Exposed Registers Comparison
  13. 10RC19002 vs. LMKDB1102 Comparison
    1. 10.1 RC19002 vs. LMKDB1102 Pin Comparison
    2. 10.2 RC19002 vs. LMKDB1102 Exposed Registers Comparison
  14. 11Summary
  15. 12References

9.1 RC19202 vs. LMKDB1202 Pin Comparison

To summarize, OE1# pin (15) needs to receive a certain slew rate to certify the part behaves as expected (≥ 0.1V/ns). To do that, pin 15 cannot see a resistance higher than 1kΩ. Make sure the internal resistance of the component driving the LMKDB1202 and any other series resistance on pin 15 are below 1kΩ.

PIN Pin Differences between RC19202 and LMKDB1202 that Affect Drop-In Replacements Design Requirements when Replacing the RC19202 with the LMKDB1202
TI NAME RENESAS NAME NO. TYPE
Input
CLKIN0_P CLKIN0 1 I No difference N/A.
CLKIN0_N CLKINb0 2 I
CLKIN1_P CLKIN1 4 I
CLKIN1_N CLKINb1 5 I
Output and Output Enable
CLK2_P CLK10 9 O No difference N/A.
CLK2_N CLKb10 10 O
CLK1_P CLK5 16 O
CLK1_N CLKb5 17 O
^OE2# OEb_F 12 I
^OE1# OEb_C 15 I This pin needs to receive a certain slew rate (≥ 0.1V/ns) to certify the LMKDB1202 behaves as expected. To do that, this pin cannot see a resistance higher than 1kΩ. Renesas does not mention this pin having this requirement in the RC19202 data sheet, so TI assumed this as a difference between the RC19202 and the LMKDB1202. Make sure the internal resistance of the component driving the LMKDB1202 and any other series resistance on this pin are ≤ 1kΩ. In most applications, slew rate requirements are generally met and this is not an issue.
Power
VDD_IN0 VDDIN0 3 P No difference No changes are required. Keep the same power filtering used for the RC19202.
VDD_IN1 VDDINI1 6 P
VDD_BANK1 VDDCLK_1 8 P
VDD_DIG VDDDIG 19 P
VDD_BANK0 VDDCLK_0 18 P
VDDA VDDA 14 P
Miscellaneous
^vCLKIN_SEL_tri CLKSEL_tri 7 I No difference N/A.
vZOUT_SEL ZOUTSEL 11 I
LOS# LOSb 13 O
GND GNDSUB 20 G
GND EPAD DAP/21 G